Categories
Science

The universe is brighter than we thought

Over seven years ago, the New Horizons mission made history by becoming the first spacecraft to fly by Pluto. Ahead of this encounter, the spacecraft provided updated data and images of many objects in the inner and outer solar system. Once out of the orbit of Pluto and its moons, it embarked on a new mission: the first encounter with a Kuiper Belt Object (KBO). This historic flyby occurred approximately four years ago (December 31, 2015) when New Horizons sped past Arrokoth (aka 2014 MU69).

Now that it’s passing through the Kuiper Belt, away from the light pollution of the inner Solar System, it has another lucrative mission: measuring the brightness of the universe. These measurements will allow astronomers to make more accurate estimates of how many galaxies there are, which is still a matter of debate. Light from stars beyond the Milky Way is two to three times brighter than light from known populations of galaxies, according to new measurements from New Horizons – meaning there’s even more out there than we thought!

The study was led by a team from the Center for Detectors (CfD), an academic research group at the Rochester Institute of Technology (RIT). They were joined by researchers from NASA’s Jet Propulsion Laboratory, the Space Exploration Sector (SES) of Johns Hopkins University’s Applied Physics Laboratory (JHUAPL), the University of California Irvine and the Space Sciences Laboratory (SSL) of UC Berkeley. The paper describing their findings recently appeared online and has been accepted for publication in the Astrophysical Journal.

Remove all ads on Universe today

Join our Patreon for just $3!

Get the ad-free experience for life

The overall brightness of the universe is known as the cosmic optical background (COB), which includes the diffuse light given off by all the stars and galaxies in the universe combined. Like the cosmic microwave background (CMB), the remnant radiation from the Big Bang, this value is important to astronomers because it allows them to take stock of all normal matter (also known as “luminous matter”) in the universe. This is a challenge here on Earth due to interference caused by sunlight and the way it reflects off ice particles throughout the solar system (known as Zodiacal Light).

Space telescopes orbiting near Earth are also disrupted by dust between planets, which creates foreground light. But any distracting foreground light is minimal for a mission like New Horizons, which is now deep in the Kuiper Belt and on its way out of the solar system. To calculate the COB, the team analyzed hundreds of background light images taken by New Horizon’s Long-Range Reconnaissance Imager (LORRI). Teresa Symons, a postdoctoral fellow at the University of California Irvine, led the study as part of her dissertation while studying for her Ph.D. at the Rochester Institute of Technology (RIT). As she explained in a recent RIT press release:

“We’re seeing more light than we should be seeing, based on the populations of galaxies we know exist and how much light we think they should be producing. Determining what creates this light could change our fundamental understanding of how the universe formed over time.”

Previous measurements, made in 2021 by researchers at the Space Telescope Science Institute (STScI), showed the COB was brighter than expected. This was followed up earlier this year by an independent team of scientists who found that the COB was twice as large as originally thought. These latest results corroborate these earlier studies using a much broader set of LORRI observations and suggest that there must be additional light sources in the cosmos that we have not yet considered.

Currently exploring the Kuiper Belt, New Horizons is just one of five spacecraft to reach beyond 50 AU on their way out of the Solar System and eventually into interstellar space. Photo credit: NASA/Johns Hopkins APL/SwRI

The New Horizons mission is currently more than 55.85 astronomical units (AU) from Earth (or 8.35 billion km; 5.19 billion mi) – nearly 56 times the distance between Earth and the Sun. At this distance, where foreground light is minimal, astronomers have a much clearer view of the cosmic background and can make more accurate inferences about its galactic population. Symons and her colleagues hope these observations will pave the way for future missions and instruments that can help further explore this discrepancy.

These include Caltech’s Cosmic Infrared Background ExpeRiment-2 (CIBER-2) and NASA’s Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer (SPHEREx), which will perform spectrophotometric variations of the cosmic background to learn more about galaxy formation and cosmic evolution since the big bang. Co-author Michael Zemcov, a researcher at NASA JPL and a research professor at CfD and RIT’s School of Physics and Astronomy, will play an important role in the SPHEREx mission and its data pipeline.

“This has gotten to a point where it’s a real mystery that needs solving,” he said. “I hope that some of the experiments we are involved in here at RIT, including CIBER-2 and SPHEREx, can help us resolve the discrepancy.”

Further reading: Rochester Institute of Technology, arXiv

Like this:

Like Loading…

Categories
Entertainment

Why Aminah Nieves felt she needed to tackle the 1923 function

She eventually made the decision to audition — and she consulted her family for advice.

“I talked to my mom a lot,” Aminah said. “I almost felt unworthy to tell this story because it’s so important. It’s scary when you tell something that’s been a part of you since you were just a thought, since you were a little ray of light in the cosmos. It’s scary.”

As she settled into the arduous audition process, she drew on this family support system to get her through – which ultimately served as her greatest source of inspiration.

“After the third self-tape, I couldn’t do it anymore. I couldn’t get that third self-tape. I couldn’t take it,” she explained. “I cried. I thought I have to do it, not just for me, but I looked at my mom on the other side and I was like, ‘I have to do it for her.'”

Categories
Technology

How 5G is altering journalism

There is no doubt that 5G is beginning to touch every area of ​​our lives – from online classrooms to 5G-powered bots delivering medicines to distant citizens. No wonder, then, that 5G is also changing the way our editorial offices work.

Once widely available, 5G tools and the faster speeds they deliver will help journalists in at least three ways, says Rutgers University professor John Pavlik. First, he says, “5G may enable journalists working in this field to report more effectively from their digital devices, particularly in terms of high-bandwidth news gathering, such as photogrammetry, and other immersive applications for augmented reality and Virtual reality (e.g. volumetric video recording) as well as high-resolution videos from mobile devices.”

Second, 5G may enable news organizations to operate effectively without having to rely on a centralized, physical newsroom by supporting high-speed Internet file sharing. Finally, 5G can help improve newsrooms by supporting better public engagement.

The best example of how 5G has made journalism more effective is the recent collaboration between The New York Times and Verizon. In 2019, the two companies joined forces to build a 5G journalism lab. Tools resulting from this collaboration include environmental photogrammetry, Beam and Eclipse.

environmental photogrammetry

“Ambient photogrammetry takes thousands of still images and stitches them together into a large 3D model, allowing readers to immersively navigate the space as if they were actually there,” said Sebastian Tomich, senior vice president and global head of advertising and marketing Solutions for the New York Times.

This technology was first used in a 2020 story that toured the Los Angeles mansion where gamer conglomerate FaZe Clan lived and worked. “An article using environmental photogrammetry uses as much data as streaming an hour-long TV show,” Marc Lavallee, director of research and development at The Times, said in a press release. “In order to provide our readers with a seamless reading experience, cutting-edge networks such as 5G are required.”

Ray and Eclipse

Samsung

Referring to their first proprietary photography app, Beam, Tomich said they allow Times journalists working on location to take high-resolution images with nothing more than their smartphone and camera and upload them automatically to the newsroom.

Building on Beam advances, the Eclipse app leverages Verizon 5G to expand video journalism. Eclipse can use 5G to transfer professional video files that meet The Times quality standards at speeds that rival cellphone video uploads, which are about 14 times smaller in file size, Tomich said. It enables video journalists to get footage into the hands of their editors in near real-time, rather than hours later.

“This always-on connection, enabled by Beam and Eclipse, allows for deeper coordination between the editorial team and the photo and video journalists on the ground,” he said. “With the ability to review footage in near real time, editors can now request additional photos or video while the journalist is still on site.”

Real life applications

These tools developed by the 5G laboratory are not just ideas in four walls. The team has already started implementation to improve the speed and quality of journalism.

For example, when the team covered the 2020 Oscars red carpet arrivals, Verizon deployed a 5G network at the event. With Beam, a Times photographer roamed the red carpet freely, without interruption or concern for file transfer restrictions. “He ended up sending eight times more photos than last year’s photographer, with an average upload time of 2.1 seconds,” said Tomich. “With Beam, photography is archiving.”

However, building powerful tools is not always enough to achieve effective practices in the real world. Factors such as awareness, availability and access to resources play a large role in shaping journalism. As newsrooms and 5G providers become aware of the transformative power of 5G power delivery, Pavlik proposes three ideas to better leverage the 5G tools available in the market.

He advises editors:

  1. Provide the financial support for reporters to buy state-of-the-art smartphones and other mobile devices that support 5G technology and 5G connectivity.
  2. Train reporters to use the new tools available in a 5G environment (e.g. augmented reality, virtual reality).
  3. Evolve newsroom culture to support more remote work, which can benefit from 5G mobile broadband technology.

Disadvantages of 5G journalism

Cell towers on the roof of a building against sky with clouds.Jakub Pabis / Unsplash

While 5G certainly helps improve the effectiveness of newsrooms, it brings its own problems. Not every editorial office has the financial means to invest heavily in the three ideas proposed by Pavlik. In addition to money, time also plays a role. Newsrooms can’t always spend long hours training journalists to use these fancy new tools.

The widespread availability of 5G is still a major concern in the US as well. “5G is not a ‘light switch’ that can be turned on across the country in one day,” said Tomich.

Finally, some pundits, like Victoria Mendoza, CEO of MediaPeanut (a digital tech lifestyle community), also cite security issues with the increasing use of 5G. “5G has significantly more traffic routing points, while 4G networks had fewer touch points in terms of hardware traffic,” she said. “All these ‘points’ have to be monitored for security reasons. Without them, cybersecurity will be compromised at some level.”

Ultimately, it’s still too early to say which direction the world of 5G journalism will take. There is definitely a lot of potential to explore tools and technologies to improve newsrooms, as long as the increasing security issues are also managed effectively. As Rachel Chan, Verizon’s director of media strategy and engagement, said, “This is just the beginning of what 5G can unlock.”

Editor’s Recommendations



Categories
Health

FDA modifications Plan B’s packaging to make clear it isn’t an abortion tablet

In this photo illustration, PlanB’s one-step emergency contraception is on display on June 30, 2022 in San Anselmo, California.

Justin Sullivan | Getty Images

The Food and Drug Administration is changing the informational packaging of the emergency contraceptive pill, Plan B One-Step, to clarify that it is not an abortion pill, the federal agency announced Friday.

Plan B is an over-the-counter medication that can be taken as a backup method of birth control to reduce the chance of pregnancy after unprotected sex. If taken within 72 hours of unprotected sex or contraceptive failure, Plan B works by stopping or delaying the release of an egg from the ovary, not by causing an abortion, the agency said.

“Plan B One-Step will not work if a person is already pregnant, meaning it will not interfere with an existing pregnancy,” the FDA said in a press release. “There is no evidence that the drug affects implantation or maintaining a pregnancy after implantation, so it does not terminate a pregnancy.”

Previously, packages for Plan B and generic versions of the drug falsely claimed that taking the pill might be able to prevent implantation of a fertilized egg. Medical professionals say this claim isn’t backed by any scientific evidence, but was included on the label to approve Plan B’s over-the-counter status.

As a result, the FDA revised the informational pamphlets included in Plan B’s packaging to show that it doesn’t work after insemination, the agency said.

The US Supreme Court in June overturned the constitutional right to abortion, sparking a wave of concerns about continued access to birth control and emergency contraception. Supreme Court Justice Clarence Thomas said the Supreme Court’s landmark rulings establishing gay rights and the right to contraception should be reconsidered as federal abortion rights have been revoked.

At least eight states immediately banned all forms of abortion, including medical one-pill abortions, within hours of the Supreme Court’s decision.

The FDA said because Plan B prevents pregnancy by acting on ovulation “long before implantation,” it doesn’t cause abortions.

The agency recommends consumers talk to their doctors about emergency contraception so they understand “the importance of using these products as directed.”

Categories
Sport

Ravens safe playoff spot by beating Falcons, shedding to Patriots

BALTIMORE — The Ravens are in the playoffs again, but they did so without star quarterback Lamar Jackson.

With Jackson (sprained knee) missing his third straight game, the Ravens secured a postseason berth with a 17-9 win over the Atlanta Falcons on Saturday, relying on strong running play and tight defense.

Little did the Ravens (10-4) know that they had secured their ticket to the playoffs as soon as their game was over. Baltimore had to wait a few more minutes before the New England Patriots lost 22-18 to the Cincinnati Bengals.

This was the first time Baltimore had earned a playoff berth without Jackson as a starting quarterback since 2014 with Joe Flacco.

It was another tough game for the offense without Jackson, who has just two touchdowns in three games without the 2019 NFL MVP. The Ravens got fed up with their running game, rushing for 184 yards on the ground. Tyler Huntley, standing in for Jackson, was 9 of 17 for 115 yards and a touchdown.

While the Ravens’ offense has struggled, their defense continues to clamp down. Baltimore stepped up to stop Atlanta from the 1-yard line for fourth and goal in the fourth quarter. This was the third time in the past six games that the Baltimore defense didn’t concede a touchdown.

The Ravens can still conquer the AFC North if they win. Their last two games are at home against the Pittsburgh Steelers and in the finals with the Cincinnati Bengals.

Categories
Technology

Has the EU’s graphene flagship met its 10-year targets?

In the spring of 2010, physicist Jari Kinaret received an email from the European Commission. The EU executive sought pitches from scientists for ambitious new mega-projects. The initiatives, known as flagships, would focus on innovations that could transform Europe’s scientific and industrial landscape.

Kinaret, a professor at Chalmers University of Technology in Sweden, reviewed the initial proposals.

“I wasn’t very impressed,” the 60-year-old told TNW. “I thought they could come up with better ideas.”

Greetings, humanoids

Subscribe to our newsletter now to get a weekly roundup of our favorite AI stories delivered to your inbox.

Kinaret happened to come up with an idea of ​​his own: growing graphene. He decided to submit the subject for consideration.

This proposal laid the foundation for the Graph flagship: the largest European research program to date. Launched in 2013 with a budget of €1 billion, the project aimed to bring the “miracle material” into the mainstream within 10 years.

On the eve of that deadline, TNW spoke to Kinaret about the project’s progress over the past decade — and its hopes for the next.

Graphene arrives in Europe

Scientists have been tracking the single sheet of carbon atoms that make up graphene since 1859, but its existence was not confirmed until 2004. The big breakthrough came with an amazingly simple product: adhesive tape.

Andre Geim and Konstantin Novoselov, two physicists at the University of Manchester, regularly hosted “Friday Night Experiments” where they explored offbeat ideas. At one such session, duct tape was used to extract tiny flakes from a lump of graphite. After repeatedly separating the thinnest fragments, they created flakes just one atom thick.

The researchers had isolated graphene – the first two-dimensional material ever discovered.

The researchers donated their graphite, ribbon and graphene transistor to the Nobel MuseumThe researchers donated graphite, adhesive tape and a graphene transistor to the Nobel Museum. Photo credit: Gabriel Hildebrand

The scientific world was filled with excitement. Graphene was the thinnest known material in the universe, the strongest ever measured, more pliable than rubber and more conductive than copper.

In 2010, Geim and Novoselov received the Nobel Prize for their discovery. The awards committee envisioned endless applications: touch screens, light panels, solar cells, satellites, meteorology and, um, practically invisible hammocks for cats.

So a hypothetical 1m2 graphene hammock would weigh 0.77mg.  In our 1 m2 hammock, which is fixed between two trees, you could place a weight of approx. 4 kg before it would break.The hypothetical hammock would weigh only 0.77 mg and support a 4 kg cat. Source: Royal Swedish Academy of Sciences.

Kinaret saw the potential. Three years later, he led an EU campaign to bring graphene from the lab to the market.

Hype versus reality

Commercializing graphene has never been easy. Studies suggest so that innovations usually take five to seven decades to develop from inventions into products with significant market shares. Evolution would be slow—but observers were already impatient.

As the director of the flagship, Kinaret had to contend with such sober expectations. He would refer to it frequently in conversations the Gartner Hype Cyclea representation of how new technologies are developing.

The timeline begins with a breakthrough that sparks a media commotion. In the case of graphene, reporters soon claimed the material would replace silicon.

“Graphene cannot replace silicon,” says Kinaret. “Graphene is a metalloid; it is not a semiconductor.”

When reality fails to live up to such inflated expectations, interest dwindles and investment dwindles. Gartner describes this phase as “Valley of Disillusionment”. Graphene appears to be past this perilous time, thanks in part to long-term commitment from the EU.

The remaining supporters tend to be more practical and persistent. Now their goal is mainstream acceptance.

“We promised that – and we kept it.

Many trading partners were initially thrifty with their investments. A very large European company had a budget of just €20,000 for 30 months – “just enough to buy coffee for the people working on it, but not really enough to do anything substantial,” recalls Kinaret.

To increase their engagement, the flagship needed their trust, which presented a challenge as competing brands had to work together. Nokia, for example, would have to work with Ericsson.

“One dimension of trust that people needed was trusting that this was real,” says Kinaret. “The other is that the participants had to trust each other.”

The flagship’s current membership suggests that trust is now secured. The share of companies has grown from 15% to around 50% today. The other half are either research institutes or universities.

Kinaret describes the growth of industrial commitment as the flagship’s key development.

“We promised that and we delivered it,” he says.

From laboratory to factory

Around 100 products have emerged from the Graphene Flagship. The vast majority are business-to-business technologies, such as Thermal coating for racing cars and environmentally friendly packaging for electronic devices. Consumer products have been commercialized more slowly.

Kinaret presents some of his favorites. one is Qurva Spanish spin-off that makes graph-based sensors that allow cars to detect pedestrians in fog and rain.

“There are detectors today that do the same thing, but they can cost around $500 each,” says Kinaret. “The graphene detectors could cost around $1 each. That would be a total game changer in this business.”

Qurv's broadband image sensors could improve computer vision. Qurv’s broadband image sensors could improve computer vision. Credit: The Graphene Flagship

Another highlight for Kinaret is neuroelectronics in the brain. The startup is developing graph-based implants that can monitor brain signals and treat neurological disorders.

The devices could eventually stimulate the brain to control the tremors caused by Parkinson’s disease. Conventional electrodes can achieve this, but they are much stiffer than highly flexible graphene.

“The brain is like a lump of jelly — it’s constantly moving,” says Kinaret. “If you put a stiff electrode there, it causes scarring.

Kinaret is also excited about the prospects for basic research. In 2018, Graphene flagship partners revealed that over 2,000 materials can exist in 2D form. Not all of them are stable, but some of them are the focus of active research.

“You can make superconducting materials.

Some researchers are investigating what can be achieved by stacking the substances in multiple layers.

“You can grow them so that there’s a very specific twist angle between the different layers, which means they’re slightly misaligned. This misalignment angle is a very important new parameter,” says Kinaret.

“By tuning this misalignment angle, you can make materials that are superconducting and have very interesting optical properties. This has only been researched in basic research for about four years and is still quite a long way from applications. But it offers interesting possibilities for the future.”

Mission accomplished?

Kinaret is proud of the achievements of the flagship. He believes the initiative has significantly exceeded its goals.

The data seems to support his claims. The European Commission wants to convert every 10 million euros invested into a patent application. The flagship, Kinaret says, has more than 10 times that requirement. Scientific publication targets were exceeded by a similar factor.

Kinaret's research is motivated by potential applications. Kinaret’s research is aimed at potential applications. Credit: Graphene Flagship

There are still challenges to overcome. In electronics, for example, high-quality graphene must be transferred from the substrate on which it is grown to the system on which it will be used. The flagship is good at doing this manually, but automating the process on an industrial scale has proven more difficult.

Nonetheless, Kinaret reminds the team to stay positive.

“Engineers are typically short-term optimists and long-term pessimists,” he says. “They expect progress to be much faster initially than it turns out to be, but end up underestimating the impact of new technologies.”

Looking ahead, Kinaret expects Europe to become a graphene powerhouse. The flagship has given the continent an edge over the US in the race to mainstream.

However, he admits that laypeople still wonder what graphene is and can do.

“If we get into a situation where a surprised ‘What?’ was replaced by “so what?” because it’s become ubiquitous or mainstream…then we’ve made it.”

Categories
Science

New York Local weather Act Scoping Plan Permitted – Watts Up With That?

Roger Caiazza

The New York Climate Leadership and Community Protection Act (Climate Act) Scoping Plan framework for the net-zero by 2050 transition plan was approved by the Climate Action Council on December 19, 2022.  This is follow to my earlier description of the process explains some of the rationale for that decision.

Background

The Climate Act establishes a “Net Zero” target (85% reduction and 15% offset of emissions) by 2050. The Climate Action Council is responsible for preparing the Scoping Plan that will outline how to “achieve the State’s bold clean energy and climate agenda.”  In brief, that plan is to electrify everything possible and power the electric grid with zero-emissions generating resources by 2040.  The Integration Analysis prepared by the New York State Energy Research and Development Authority (NYSERDA) and its consultants quantifies the impact of the electrification strategies.  That material was used by staff from various State agencies to write a Draft Scoping Plan that was released for public comment at the end of 2021. The Climate Action Council is finalized the Scoping Plan on schedule.

The December 19, 2022 meeting materials are available at the New York Climate meetings page including the meeting presentation and the meeting recording.  In my previous article I noted that the it was unlikely that the Climate Action Council would not vote to approve the Scoping Plan because all but two of the 22 members were picked by the Democrats who passed the legislation   I wondered if anyone would cast a symbolic “no” vote and was surprised that three members voted against approval.  After the formal vote each member of the Council gave a statement supporting their decision.  This post summarizes those statements in three categories: the Hochul Administration’s position, the at-large members who supported it and the three members who voted against approval.  I am not going to provide any commentary on these summaries.

New York State Leadership Statement

Co-chair of the Climate Action Council and President & CEO of the New York State Energy Research & Development Authority Doreen M. Harris summed up the position of the Hochul Administration.  Her statement said the plan “upholds three main principles of the work that we have advanced throughout this almost three-year process”:

Principle 1: Climate Action

This plan demonstrates that climate action is not only necessary, but that delay is to be avoided. Delaying climate action has been shown to cost New Yorkers more. Therefore, I am in favor of undertaking this action now so that we may begin delivering additional benefits to the New Yorkers we are acting on behalf of.

As we implement our climate actions, certainly we will consider the on-the-ground issues and immediate costs and concerns of citizens and businesses. This is how we implement policy in New York every day and will continue to do so.

But our eye is on the prize and we in New York are wise to take climate action and have it serve as a model to the rest of the country.

Principle 2: Climate Justice

We have a plan that demonstrates how success can only be claimed when we have been able to advance and implement our climate action in a manner that addresses the issues of past decisions.

Historically, underserved communities have not been included in the dialogue and that must change. Underserved communities have also not had sufficient access to clean energy in housing, education and career opportunities and that must also change.

This plan is demonstrating how all disciplines around this table – Energy, Environment, Education, Transportation, Labor, Health, Housing, Industry, Agriculture – have responsibilities to make sure that justice is an equal outcome to the changes in our day-in, day-out business operations.

To put it simply, business as usual is no longer an option.

Principle 3: Climate Economy

I do agree with comments made at previous meetings that the economic opportunities we are looking to create through our climate planning have often been an unspoken undercurrent in this process.

We simply do not succeed if our state economy is not better off for our activities in advancing this plan. I am beyond enthusiastic about the new industries and career opportunities that we are creating in New York. And, as a product of Upstate New York myself I have never seen the level of opportunity that is at our doorstep in all parts of the state.

But that is not to discount the attention that must be paid to New Yorkers – particularly my energy colleagues and workers – that will need to find their new opportunities in our decarbonizing economy. I pledge that I will do what I can to make sure we create all those opportunities and more so that you too can become part of the more than 200,000 jobs that we stand to gain.

At Large Member Supporters of the Scoping Plan

Four Council Members chosen for their ideology and not their energy system expertise all voted to approve the Scoping Plan.  Their comments beg for responses but that will have to wait until another time. 

The statement of Robert W. Howarth, Ph.D., the David R. Atkinson Professor of Ecology & Environmental Biology at Cornell University was very illuminating relative to the motives of the supporters.  It is also very difficult to quote this without responding.  For starters, Dr. Howarth basically takes credit for the law:

Assembly Person Steven Englebright was hugely instrumental in the passage of the Climate Leadership & Community Protection Act that established the Climate Action Council. I thank him for his leadership on this, and particularly for his support of the progressive approach on greenhouse gas emissions that is a central part of the CLCPA. I originally proposed this to Assembly Person Englebright in 2016, and he enthusiastically endorsed and supported it through multiple versions of the bill that finally led to passage of the CLCPA in 2019. In this accounting for greenhouse gases, a major government for the first time ever fully endorsed the science demonstrating that methane emissions are a major contributor to global climate change and disruption. Further, in passing the CLCPA New York recognized that consumption of fossil fuels (and not simply geographic boundaries) is what matters in addressing the climate crisis. New York wisely banned the use of high-volume hydraulic fracturing (“fracking”) to develop shale gas in our State. But since the time of that ban, the use of fossil natural gas has risen faster in our State than any other in the Union. Methane emissions from this use of shale gas are high, but much of that occurs outside of our boundaries in the nearby states of Pennsylvania, West Virginia, and Ohio. Through the CLCPA, the citizens of New York are taking responsibility for these out-of-state emission caused by our use of fossil fuels, particularly for fossil natural gas. The way to reduce these emissions is to rapidly reduce our use of fracked shale gas.

He went to claim that the Scoping Plan development process ” brought in a large number of experts and key stakeholders who worked diligently to advise the Council on our Scoping Plan”.  After extolling the success of the stakeholder process and the staff members who contributed he explained why everything will work out:

I further wish to acknowledge the incredible role that Prof. Mark Jacobson of Stanford has played in moving the entire world towards a carbon-free future, including New York State. A decade ago, Jacobson, I and others laid out a specific plan for New York (Jacobson et al. 2013). In that peer-reviewed analysis, we demonstrated that our State could rapidly move away from fossil fuels and instead be fueled completely by the power of the wind, the sun, and hydro. We further demonstrated that it could be done completely with technologies available at that time (a decade ago), that it could be cost effective, that it would be hugely beneficial for public health and energy security, and that it would stimulate a large increase in well-paying jobs. I have seen nothing in the past decade that would dissuade me from pushing for the same path forward. The economic arguments have only grown stronger, the climate crisis more severe. The fundamental arguments remain the same.

Our final Scoping Plan from the Climate Action implicitly endorses the vision of the Jacobson et al. paper and is quite clear: we can meet the goals of the CLCPA and we can and will do so in way that is affordable and that will benefit all New Yorkers. Our State will be stronger as this plan is implemented, the health and well being of our citizens improved. Economic uncertainties and vulnerabilities will be reduced. Energy security will be enhanced. Our plan is also clear that the #1 priorities are to continue to move towards wind, solar, and hydro as our source of electricity; to move rapidly towards beneficial electrification as a source of heating and cooling in our homes and commercial buildings; and to move rapidly towards beneficial electrification in our personal and commercial vehicles.

Peter Iwanowicz is Executive Director, Environmental Advocates of New York.  His statement included the following comments:

When it was passed by the Legislature, The New York Times called the Climate Leadership and Community Protection Act (CLCPA) “One of the world’s most ambitious climate plans.”  While a bold pronouncement and attention-grabbing headline, it was by any measure an accurate depiction of the legislation. For the CLCPA is legislation written by those on the frontlines of the climate crisis for the benefit of those on frontlines of the climate crisis. At the time a novel approach and a testament to how policy should work.

The CLCPA provided us the promise and—through multiple provisions in the law—the guidance to make the right decisions on the pace and scale of the change needed.  At its core, the CLCPA is about establishing standards into law so that New York does its share to create a planet that is healthy enough for humans to inhabit.  What we learned through our process is that zeroing out all greenhouse gas emissions through a massive transformation of our economy is the only viable and certain path.

What truly makes the CLCPA the most ambitious of plans is the legal assurance that those disproportionately impacted by climate change and poor air quality will have their needs, health, and communities prioritized. That, and we will not leave any worker behind as the transition unfolds. 

What we have developed is a solid blueprint to guide the public and lawmakers on how to secure the promises of our climate law.

The plan shows the pathway forward to provide big benefits, including:

● Reducing energy bills
● Improving our health and lowering health care costs
● Reversing decades of environmental injustice that has caused such harm to those who live, work, and play in our state’s disadvantaged communities.

The costs of acting are not trivial, but the analysis that the council has agreed to revealed that the cost of inaction is greater than the cost of acting.  Our plan shows that the quicker the public, the Governor and Legislature move to electrify all sectors, the faster we’ll realize the benefits.

Raya Salter Esq., Principal, Imagine Power LLC is “an attorney, consultant, educator and clean energy law and policy expert with a focus on energy and climate justice.”  Highlights from her statement reflected her background:

The true credit for this Plan belongs to the thousands of activists across New York who have rallied, marched, wrote letters and demanded that this be the people’s plan. In 2019 I stood with activists not far from where we sit now, who shut down then-Governor Cuomo’s office in an action to demand the passage of what ultimately became the Climate Leadership and Community Protection Act. It is that law that required this process and plan.

The release of this final Scoping Plan is a landmark moment for climate action in New York State. The Plan, if implemented, will guide New York towards a just energy transition and away from fossil fuels.

I was a member of the Council’s Gas Transition Subgroup and worked on the Scoping Plan’s vision to retire fossil fuel plants and decarbonize the buildings sector. It includes a blueprint for the retirement of New York City’s most-polluting fossil fuel plants and their sites by 2030 that will inform broader planning to retire fossil fuel plants throughout the State. This is a win for environmental justice.

The Plan is not perfect. Ideas for market-based “cap and invest,” and biofuels schemes should be rejected if they can’t overcome design flaws and stakeholder concerns. While the state’s climate law should ultimately prohibit the use of most “alternative fuels,” like “renewable natural gas” and hydrogen for use in pipelines on an emissions basis, the Plan is wrong to contemplate these false solutions. Likewise, looks into so-called “advanced-nuclear” are a dangerous distraction.

The Scoping Plan, however, provides a comprehensive approach to reaching the state’s nation-leading climate goals with a focus on justice and equity. The next step is to see it fully implemented.

Dr. Paul Shepson, Dean, School of Marine and Atmospheric Sciences at Stony Brook University only offered a short statement:

I will start by noting and asking us to remember that people around the world have not been paying the actual costs of burning fossil fuels to meet our energy needs; and so it is exciting and just and honorable that we are now embarking on a better way, with far fewer collateral costs to the environment, in support of ALL living things on the planet. And so, I enthusiastically endorse the December 19, 2022 final version of the New York State Climate Action Council Scoping Plan. While the Scoping Plan incorporates multiple compromises in wording and orientation, given the diverse and sometimes divergent interests of components of the CAC membership, it is nonetheless a great statement of New York State’s commitment to national and global leadership in the effort to achieve climate stabilization. The Scoping Plan, which supports the implementation of the CLCPA, is a document of which I am proud, and feel fortunate to have been able to contribute to its completion. I am impressed by and grateful for the hard work and dedication of the agency staff members who worked to bring this effort to completion, and the fantastic leadership of our co-chairs and of Sarah Osgood, and want to thank my fellow CAC members for helping to make this process enjoyable, and successful.

Council Members who Voted Against the Scoping Plan

I don’t think it is a coincidence that three members of the Climate Action Council with the most energy system practical experience voted against approval of the Scoping Plan.

Donna L. DeCarolis, President, National Fuel Gas Distribution Corporation explained that she supported many aspects of the Scoping Plan.  However her statement described why she voted against it:

Throughout my tenure on the Council, and from my perspective as the President of a utility in western New York serving communities with more than 1.6 million people, I have continued to express concerns about the Scoping Plan’s consumer impacts – for residential homeowners, small businesses and industrial interests in the state – and to offer perspectives and alternatives that will allow us to meet the requirements of the Climate Leadership and Community Protection Act (Climate Act) while preserving reliability (at both the wholesale power generation level and for homes and businesses), energy system resiliency and an affordable transition for consumers. I find the final Scoping Plan falls short in this regard, and there remain significant concerns that could jeopardize the reliable, resilient and affordable provision of energy for the state’s residents and businesses. Specifically, the Scoping Plan:

● Fails to adequately ensure grid reliability for consumers;
● Relies too heavily on a single energy source that is prone to weather-related disruption; and,
● Does not include a full assessment of impacts on consumer energy affordability.

Gavin Donohue, President and CEO, Independent Power Producers of New York also voted against approving the Scoping Plan.  His statement overview is a good summary of his position:

Two years ago, I was appointed to the State’s Climate Action Council. The Climate Leadership and Community Protection Act (“CLCPA”) requires an economy-wide approach to addressing climate change and decarbonization, coupled with mandates to deliver 70% of New York’s energy from renewable resources by 2030 and 100% emissions-free electricity supply by 2040 (“100 by 40 target”). The Scoping Plan (“Plan”) was intended to inform New York residents and businesses about measures necessary to meet the requirements of the CLCPA. While the Council is required to update the Plan at least once every five years, it is essential that the inaugural Plan is practical, comprehensive, and contains provisions that send investment signals necessary to achieve the CLCPA’s requirements in a reliable and cost-effective manner. There is no backup plan to this one, and the manner in which the document is structured does not achieve the expectations set two years ago.

I am voting against the final Plan since it remains significantly lacking in these core areas, with additional concerns as discussed below:

● Reliability is inadequately addressed, putting New York at risk for economy crushing blackouts and potential public safety risks.
● High energy costs for energy consumers and the impact on their cost of living and on the competitiveness of New York businesses.
● Insufficient programs to keep benefits of existing renewable facilities in this state.
● Leaping to moratoriums and bans instead of developing innovative technologies.
● Undefined wording and the lack of a glossary of terms creates ambiguity in some of the Plan’s language.

To help raise awareness for these concerns and ensure that New York’s clean energy transition is done in a more responsible manner, IPPNY, along with the New York State AFL-CIO, the New York State Building & Construction Trades Council, and Business Council of New York State, formed a unique coalition to develop a set of seven principles1 to advance New York’s clean energy goals and establish the criteria to be met by the Plan. This coalition put productive and positive ideas on the table to make the Plan better. Unfortunately, these principles were insufficiently addressed by the Council and the Plan.

Dennis Elsenbeck, Head of Energy and Sustainability, Phillips Lytle was the final Council member to vote against the Scoping Plan.  He explained that he voted against the Plan because “we have fundamentally missed the mark on balancing environmental and economic sustainability, choosing one over the other, thereby limiting the potential to achieve either goal.”  His statement included five key concerns that led to that decision.  The first two concerns are:

Limiting our solutions by losing sight of our climate challenges

We must not lose sight of the challenges we are working to solve. The CLCPA set ambitious climate and clean energy goals to safeguard our state’s resources for future generations while reinvesting in disadvantaged communities. Much of our discussions appeared to be more about shutting down the natural gas transmission and distribution network than on achieving the 85% Greenhouse Gas (GHG) reduction by 2050. Although they may appear similar, shutting down the natural gas network and achieving the CLCPA’s GHG goals are separate objectives requiring different technical paths. Our focus should be meeting our GHG reduction goals. Any discussions surrounding the natural gas transition should explore, with equal weight, what we are transitioning from and what we may be transitioning to. In my experience, limiting options also decreases the probability of meeting aggressive goals, such as our GHG objective.

Readiness of our Electric System

Much of the CLCPA outlines a transition from a fossil fuel to an all-electric economy. In my opinion, New York’s current electric distribution infrastructure cannot handle the projected 50% increase in demand. I have been adamant throughout Council discussions that without action, such as a PSC Order requiring utilities to respond, the electric distribution system is not equipped to accommodate such a transition without major investment-the cost, timing and implementability of which is yet to be determined. The Scoping Document begins to frame this challenge but falls short on how to resolve the matter_ As with most states and countries, climate initiatives begin on the supply side of the electric system. Large scale renewable energy projects appear to be focused on land (and water) availability and not as much on proximity to load centers resulting ina need for additional transmission investment; we must anticipate the impact of electrification on the distribution system to fully explore non-traditional utility investment by engaging market participants. Subject matter experts such as regulatory agencies, the NYISO, NERC and the electric utilities must be given the opportunity to respond to the Scoping Document before it reaches the Governor’s desk. We should have a more balanced and mandated planning strategy that aligns supply, demand and delivery and advances the CLCPA’s goals and our state’s economic development aspirations for business expansion, attraction and site readiness. We need to resolve the issue of dispatchable supply through continued exploration of the role of long duration storage, nuclear, hydrogen, renewable natural gas and other non-fossil-based approaches to ensure that we have a stable electric system in concert with how we progress with any gas transition strategy.

Conclusion

These statements give a good overview of the positions and motivations of Council membership.  Needless to say, I strongly endorse the statements of the three members who voted against the Scoping Plan.  When I find time I intend to address some of the more egregious claims of the proponents.

The Plan is just a framework that does not include a feasibility analysis to ensure the strategies proposed will maintain current standards of electric system reliability or the reliability of any other energy system component for that matter.  Readers of this blog are well aware of the affordability crises that similar programs at other jurisdictions that are further along are experiencing this winter.  The statements presented include a couple of references to a claim that the costs of inaction are greater than the cost of action.  Earlier this year I posted an article here describing the machinations used to make that misleading and inaccurate claim.  I made those arguments to the Council in my verbal comments and followed up with detailed written comments but there was no acknowledgement of them by the Council.  This whole process has been rigged from the start to get the pre-ordained answer.

The proponents of the Climate Act Scoping Plan are bound and determined to dive into this net-zero transition plan.  Unfortunately, they don’t want to check to see if there is any water in the pool.

Roger Caiazza blogs on New York energy and environmental issues at Pragmatic Environmentalist of New York.  More details on the Climate Leadership & Community Protection Act are available here and an inventory of over 250 articles about the Climate Act is also available.   This represents his opinion and not the opinion of any of his previous employers or any other company with which he has been associated.

Like this:

Like Loading…

Categories
Entertainment

Tory Lanez discovered GUILTY on all three counts

A verdict has been made Tory Lanez‘shooting trial in which the jury eventually found him guilty on all three charges against him, and the rapper was re-arrested on Friday.

He faces a maximum sentence of more than 22 years in prison and deportation back to Canada after being found guilty. His sentencing date is scheduled for January 27th.

Megan’s attorney, Alex Spire, released a statement shortly after Friday’s verdict, saying:

“The jury got it right. I am grateful that there is justice for Meg.”

Lanez faces up to 22 years in prison and deportation to Canada

A jury in Los Angeles found Lanez, 30, guilty of negligently discharging a firearm, assaulting with a semi-automatic firearm and carrying a loaded unregistered firearm in a vehicle.

Meghann Cuniff, a reporter who was on site during the trial, tweeted The courtroom immediately turned into an emotional scene with family members screaming loudly as the verdict was read.

“A crazy and downright frightening scene in the courtroom as Lanez’s father and stepmother cried out at wicked injustice.”

The shadow room was outside the Los Angeles courthouse as the verdict was read and captured video of Lanez’s father, Sonstar Peterson, calling prosecutors “evil.”

The verdict came around 6:15 p.m. Friday, after the jury the previous day called for “a better definition of the word ‘willful’ and ‘intentional’.” The jury agreed to wait until today for a written response from the court, after which it took several hours to deliberate in favor of a guilty verdict.

The news comes after a more than week-long trial full of scathing testimony from the victim. Megan Thee Stallionalong with other witnesses on the night of the shooting.

Last week, Meg, whose real name is Megan Pete, emotionally testified that Tory Lanez offered her $1 million to keep quiet about the alleged shooting during this week’s attack trial, even revealing that the traumatic incident left her Have caused suicidal thoughts, per reports.

Witness threw a wrench at Lanez’s defense with scathing testimony against the rapper on Tuesday

On Tuesday, a man named Sean Kelly was called to the witness stand on behalf of Lanez’s attorneys and threw a wrench at the rapper’s defense.

According to Rolling Stone, Kelly was in his bedroom around 4 a.m. on July 12, 2020. He looked out his window and reportedly saw four people fighting and yelling at each other. Kelly called the confrontation “pretty violent.”

Lanez’s defense team decided to use Kelly as a witness after he spoke to an investigator in 2021. He recalled seeing the first muzzle flash near a woman’s hand that morning.

It allegedly happened during a physical altercation between Megan Thee Stallion and Kelsey Harris as she stood near an open door of the Cadillac Escalade the group was driving in. Kelly firmly believes one of the women fired the first shot, although he doesn’t recall seeing a gun.

The defense team initially hoped that Kelly’s recollections of what happened would raise reasonable doubts in the jury.

Lanez decides not to testify at his own trial

Lanez himself eventually decided not to testify at his trial, telling presiding judge Herriford that it was his decision not to do so. Herriford then read the jury’s instructions before the closing arguments began at 1:30 p.m. Thursday.

This is an evolving story, so be sure to check back with The Shade Room for updates as they come.

Categories
Health

Jim Cramer’s Friday Investing Membership Assembly: Fed Technique, Membership Mantra

Categories
Science

Webbs neues Bild zeigt eine Galaxie in Sternentstehung

Wenn sich eine Spiralgalaxie genau richtig präsentiert, zeigen Beobachtungen mehr Details. Das ist bei NGC 7469 der Fall, einer Spiralgalaxie, die etwa 220 Millionen Lichtjahre entfernt ist. Es ist uns frontal zugewandt und das James Webb Space Telescope hat sein aufschlussreiches wissenschaftliches Porträt aufgenommen.

NGC 7469 ist aus einer Reihe von Gründen wissenschaftlich interessant und Gegenstand mehrerer neuerer Arbeiten, die auf Beobachtungen des James Webb Space Telescope (JWST) basieren.

Es ist eine leuchtende Infrarotgalaxie (LIRG) mit einem aktiven galaktischen Kern (AGN). Es ist eine Seyfert-Galaxie, die zu den am intensivsten untersuchten Objekten im Universum gehört. Sie ähneln Quasaren, sind aber näher und weniger leuchtend. Astrophysiker glauben, dass sie von der gleichen Quelle wie Quasare angetrieben werden, aber sie sind leichter zu beobachten. NGC 7469 hat einen hellen Kern und ist eine der am besten untersuchten Galaxien ihrer Art. Es hat auch einen Starburst-Ring, der in seine nukleare Region eingebettet ist. Um das Ganze abzurunden, ist es Teil eines Paares interagierender Galaxien, die andere ist die viel kleinere IC 5283. (Das Paar ist im Atlas der besonderen Galaxien auch als Arp 298 bekannt.)

Entfernen Sie noch heute alle Anzeigen auf Universe

Treten Sie unserem Patreon für nur 3 $ bei!

Holen Sie sich das werbefreie Erlebnis fürs Leben

Dieses beeindruckende Bild des NASA/ESA-Weltraumteleskops Hubble zeigt Arp 298, ein beeindruckendes Paar interagierender Galaxien. Arp 298 – bestehend aus den beiden Galaxien NGC 7469 und IC 5283 – liegt etwa 200 Millionen Lichtjahre von der Erde entfernt im Sternbild Pegasus. Bildnachweis: ESA/Hubble & NASA, A. Evans, R. Chandar

Wegen all seiner faszinierenden Eigenschaften und weil er von unserem Standpunkt aus frontal erscheint, haben Astronomen NGC 7469 intensiv studiert. Es macht nur Sinn, dass das JWST, sobald es einsatzbereit ist, auch seine scharfen Infrarotaugen auf die Galaxie richten würde.

Ein aktuelles Beobachtungsprogramm namens GOALS (Great Observatories All-sky LIRG Survey) hat die Galaxie in seine Beobachtungen aufgenommen. GOALS kombiniert Beobachtungen von Galaxien aus mehreren Quellen: Spitzer, Hubble, Chandra, GALEX und jetzt das JWST.

Auf der Website von GOALS heißt es: „Galaxien entwickeln sich durch eine Kombination aus säkularen Prozessen wie Kaltgasakkretion und nicht-säkularen Prozessen wie galaktischen Verschmelzungen, die massive Starbursts und starke AGN auslösen können. JWST wird unser Verständnis der galaktischen Evolution verändern und einen detaillierten Einblick in die Physik der Sternentstehung und des Wachstums schwarzer Löcher in nahen und fernen Galaxien geben.“

Obwohl NGC 7469 gut untersucht ist, erschweren seine kompakte Beschaffenheit und sein Staub sein Verständnis. Aber die Kraft und Sensibilität des JWST überwinden diese Hindernisse. Das Teleskop bringt ein neues Verständnis der Beziehungen zwischen dem zentralen AGN der Galaxie, dem Starburst-Ring und dem gesamten Gas und Staub.

Die neu veröffentlichten Papiere zeigen, wie das JWST unser Verständnis der galaktischen Evolution verändert. Seine Instrumente – MIRI, NIRCam und NIRspec – haben neue Details enthüllt, die den Vorgängern des JWST verborgen waren. Das GOALS-Team fand sehr junge Sternhaufen, die noch nie zuvor gesehen wurden, sowie Taschen mit sehr warmem, turbulentem molekularem Gas. Sie fanden auch direkte Beweise für die Zerstörung kleiner Staubkörner innerhalb weniger hundert Lichtjahre um den Kern herum – was beweist, dass das AGN das umgebende interstellare Medium beeinflusst.

Die Webb enthüllte auch mehr Details über den Ausfluss von molekularem Gas aus der Galaxie. Das Gas ist ionisiert und hochdiffus und verlässt die Galaxie mit etwa 6,4 Millionen km/h (4 Millionen mph).

Während das JWST uns wunderschöne Bilder gegeben hat, die unseren Geist des Staunens inspirieren, sind die Bilder in diesen Studien wissenschaftlicher. Sie werden sie nicht in Kalendern sehen, aber sie werden Ihren neugierigen, inneren Astrophysiker ansprechen.

Die erste der Veröffentlichungen ist „GOALS-JWST: Resolving the Circumnuclear Gas Dynamics in NGC 7469 in the Mid-infrared“. Es wurde in den Astrophysical Journal Letters veröffentlicht, und die Hauptautorin ist Vivian U, ein Assistant Research Astronomer an der University of California Irvine.

Dies ist das erste Mal, dass die Gasdynamik im mittleren Infrarot in der zentralen Region eines LIRG-Kerns so deutlich gesehen wurde. Es ist ein weiteres Beispiel dafür, wie die Kraft des JWST unser Verständnis der Galaxienentwicklung vorantreibt. Die Bilder zeigen deutlich, wie das AGN über Schocks Energie in das dichte interstellare Gas einbringt. Es ist ein Beispiel für AGN-Feedback, ein Thema von großem Interesse für Astrophysiker, die versuchen zu verstehen, wie dieses Feedback das Wachstum und die Entwicklung von Galaxien beeinflusst.

Dieses Bild zeigt die Spiralstruktur von NGC 7469 mit ausgeblendetem Kern. Das weiße Quadrat im Hauptbild wird im oberen rechten Bild erweitert. Da sich dieses Papier auf die Gasdynamik konzentriert, zeigt das obere rechte Bild den Sternentstehungsring um den zentralen Kern. Die weiß konturierte Region zeigt blauverschobenes Gas, das vom AGN auf uns zuströmt. Das Cartoon-Schema zeigt einen fast frontalen Ausfluss, der einseitig und hauptsächlich in Blauverschiebung (blauer Kegel) erscheint. Das schockerhitzte Gas ist das Ergebnis eines Ausflusses, der auf das interstellare Medium der Galaxie trifft, ein Beispiel für AGN-Rückkopplung. Der Cartoon ist nicht maßstabsgetreu; es soll nur eine plausible Interpretation der Beobachtungen zeigen. Bildnachweis: Vivian U et al. 2022 ApJL 940 L5

Das zweite Papier ist „GOALS-JWST: NIRCam and MIRI Imaging of the Circumnuclear Starburst Ring in NGC 7469“. Es wurde bei Astrophysical Journal Letters eingereicht, ist aber unter arxiv.org verfügbar. Hauptautor ist Thomas Bohn vom Hiroshima Astrophysical Science Center der Universität Hiroshima, Japan.

Diese Studie identifizierte 66 Sternentstehungsregionen im Starburst-Ring von NGC 7469, von denen 37 bei früheren Beobachtungen des Hubble-Weltraumteleskops nicht identifiziert wurden. Dies sind wahrscheinlich junge Sternpopulationen, die nicht älter als 5 Millionen Jahre sind. Dies zeigt die Fähigkeit des JWST, durch undurchsichtigen Staub zu sehen. „Dank JWST finden wir eine beträchtliche Anzahl junger staubiger Quellen, die zuvor aufgrund des Staubsterbens nicht gesehen wurden“, schreiben die Autoren. „Diese Ergebnisse veranschaulichen die Wirksamkeit von JWST bei der Identifizierung und Charakterisierung zuvor verborgener Sternentstehung in den dichtesten Sternentstehungsumgebungen um AGN.“

Diese Bilder aus der Studie zeigen die Sternentstehungsregionen in vier separaten Filtern, wobei das AGN in jedem ausgeblendet ist. Die cyanfarbenen und roten Markierungen zeigen die Sternentstehungsregionen entsprechend ihrer Fundstelle. DS07 bezieht sich auf eine frühere Studie der Galaxie mit dem Hubble (D’iaz-Santos et al. 2007.) Die unteren Felder zeigen Sternentstehungsregionen vom hellsten (M1) bis zum schwächsten (M11). Bildnachweis: Bohn et al. 2022.

Die neu identifizierten Regionen in dieser Studie sind laut den Autoren tendenziell die rötlichsten und blasssten. Das ist sinnvoll, da das JWST hervorragend darin ist, diese Arten von Objekten zu identifizieren. Die Studienergebnisse weisen darauf hin, dass „… wir mit JWST eine große Anzahl stark verdeckter Quellen entdecken, die zuvor von HST übersehen wurden.“ Das fasst kurz und knapp den Zweck des JWST zusammen.

„Insgesamt entdecken wir 66 Sternentstehungsregionen in NIRCam“, erklären die Autoren. „Dies ist mehr als das Doppelte der 30 Quellen, die zuvor von HST identifiziert wurden.“

Die dritte Studie ist „GOALS-JWST: Tracing AGN Feedback on the Star-Forming ISM in NGC 7469“. Es ist unter arxiv.org verfügbar. Erstautor ist Thomas S.-Y. Lai vom IPAC, California Institute of Technology.

AGN-Feedback ist ein heißes Thema in der Astronomie. Es untersucht, wie ausströmendes Gas aus aktiven Galaxienkernen Energie und Impuls in das interstellare Medium (ISM) einlagert. AGN-Feedback spielt eine Schlüsselrolle bei der Entwicklung von Galaxien durch Umverteilung von Gas. Irgendwie entwickeln sich SMBHs und ihre Wirtsgalaxien gemeinsam, und AGN ist miteinander verbunden.

Diese Studie konzentriert sich auf polyzyklische aromatische Kohlenwasserstoffe (PAKs). PAKs sind eine große Klasse organischer Chemikalien, die alle Kohlenstoffatome enthalten. Sie gelten als Bausteine ​​des Lebens, helfen den Astronomen aber auch auf andere Weise. Sie leuchten in Sternentstehungsgebieten und ermöglichen es Astronomen, die Umrisse der Gaswolken zu verfolgen, die Sterne hervorbringen. PAKs können auch die Sternentstehungsrate anzeigen.

Diese Abbildung zeigt Extraktionen der JWST/MIRI-Spektren in dieser Studie. In (a) ist der Starburst-Ring von NGC 7469 aufgelöst und hell in der PAH-Emission. (b) zeigt 17 Spektralregionen, und sie sind signifikant, weil sie unterschiedliche Oberflächenhelligkeiten aus dem Bild in (a) abtasten. (c) zeigt die extrahierten Spektren aus jeder Region in (b). Obwohl streng genommen nicht besonders interessant visuellen Sinn, es zeigt, wie der JWST unser Verständnis von allem vorantreibt, worauf wir ihn richten. Bildnachweis: Lai et al. 2022.

Die Eigenschaften der PAHs in verschiedenen Sternentstehungsregionen werfen Licht auf die AGN-Rückkopplung in NGC 7469. Die Autoren erklären, dass „… das zentrale AGN nur eine moderate Auswirkung auf die Staub- und Gaseigenschaften in einem Großteil des Starburst-Rings.“ Ihre Studie zeigt auch, dass es „… keine eindeutigen Anzeichen für Erschütterungen durch den ausströmenden Wind gibt, der das molekulare Gas erhitzt“.

Was macht das alles aus? Diese Daten sind zu vorläufig, um zu großen Schlussfolgerungen über das AGN-Feedback zu gelangen. Aber es ist ein Teil des Puzzles, das zukünftige Beobachtungen leiten wird. „Zukünftige Beobachtungen mit JWST werden zweifellos ein großes Licht auf die Bedeutung des Feedbacks von AGN zur Sternentstehung in Galaxien werfen“, schreiben die Autoren.

Das vierte Papier ist „GOALS-JWST: Mid-Infrared Spectroscopy of the Nucleus of NGC 7469“ und wurde bei Astrophysical Journal Letters eingereicht. Es ist auch unter arxiv.org verfügbar. Hauptautor ist Lee Armus vom IPAC, California Institute of Technology. Es konzentriert sich auf den Ausfluss aus den aktiven galaktischen Kernen von NGC 7469.

Die Autoren weisen darauf hin, wie wichtig LIRGs für das Verständnis des Wachstums von Schwarzen Löchern sind. Massive Ausbrüche von Sternentstehung machen den größten Teil der Leuchtkraft von LIRGs aus, aber auch die AGNs tragen dazu bei. Die Beiträge von AGN zur Leuchtkraft der Galaxien sind sehr unterschiedlich, und das wollen Astrophysiker besser verstehen.

Frühere Infrarot-Observatorien wie das Spitzer-Weltraumteleskop waren hilfreich, aber Spitzer war durch seinen kleinen Spiegel eingeschränkt. Wieder einmal erweitert das JWST die Grenzen der Infrarotbeobachtungen. Sein größerer Spiegel und seine höhere Empfindlichkeit zahlen sich aus. „… wir sind jetzt bereit, unser Verständnis von staubigen Sternentstehungsregionen, entstehenden AGN, galaktischen Abflüssen und allen Arten von aktiven Galaxien über einen extrem langen Zeitraum kosmischer Zeit erheblich zu erweitern“, schreiben die Autoren.

Dieses Bild ist eine weitere Ansicht des aktiven galaktischen Kerns und des Starburst-Rings von NGC 7469. Der Ring ist in Dutzende sternbildender Knoten aufgelöst, die mit Staubbahnen und Emissionsregionen durchsetzt sind. Dieses Papier konzentriert sich auf das Spektrum des AGN. Bildnachweis: Armus et al. 2022.

Die Region um AGNs ist komplex und vielschichtig. Die Autoren dieses Papiers nennen es ein „… mehrphasiges
interstellare Medien rund um aktiv akkretierende supermassive Schwarze Löcher“, und sie erwähnen, wie diese MIRI-Bilder, obwohl sie noch früh sind, die mächtige Fähigkeit des JWST hervorheben, die Region zu erforschen.

Das im Vergleich zu früheren IR-Observatorien „… stark gesteigerte Auflösungsvermögen des JWST ermöglicht es erstmals, die Formen der mittleren Infrarotlinien und damit die Dynamik des atomaren und warmen molekularen Gases im Detail zu analysieren.“ Eine ihrer Erkenntnisse ist, dass Gas im Kernwind des AGN blauverschoben ist und sich viel schneller bewegt als gedacht. Vielleicht entgegen der Intuition deutet das größtenteils blauverschobene Gas darauf hin, dass sich der AGN-getriebene Ausfluss von NGC 7469 verlangsamt. Das zeigt, wie komplex die Region ist und warum detaillierte Beobachtungen mit dem JWST der beste Weg sind, um Galaxien, Sternentstehung und das Wachstum von Schwarzen Löchern zu verstehen.

Während die großartigen Bilder des Webb von Strukturen wie den Cosmic Cliffs Schlagzeilen machen und unsere Vorstellungskraft anregen, zeigen diese Studien, wie seine Auflösungskraft und Empfindlichkeit die Wissenschaft vorantreiben.

Das Hauptbild von NGC 7469 ist aus gutem Grund das Webb-Bild des Monats. Die Spiralarme der Galaxie, ihr heller Kern und sogar die Beugungsspitze des Teleskops selbst sind wichtige Zutaten für ein ansprechendes Bild.

Aber wie diese vier frühen Veröffentlichungen zeigen, liefert das JWST neben seinen zugänglicheren Bildern eine Fülle von Daten. Mit einem Preis von über 10 Milliarden US-Dollar ist das wirklich das, worum es bei dem Teleskop geht.

Mehr:

So was:

Mögen Wird geladen…