Before you immerse yourself in your collision, it is worth understanding how extreme these objects are. A black hole is a room region in which gravity is so strong that nothing, not even light, can escape as soon as it crosses the “event horizon”. Black holes form when the most massive stars collapse at the end of their life and create a point of the infinite density that are surrounded by this inevitable border.
A neutron star now forms when a slightly less massive star explodes in a supernova. The explosion is so violent that it collapses protons and electrons in neutrons and makes matter so densely that a teaspoon would weigh about 6 billion tons on earth. These balls in the city size are incredibly quick-merchant times hundreds of times per second and magnetic fields have trillions more than the earth.
Central neutron star in the heart of the crab nebel (loan: ESA/Hubble)
Researchers headed by CalTech by CalTech assistant professor for theoretical astrophysics Elias most used powerful supercomputers to simulate what happens in the last moments before a collision between these two types of objects. About a second in front of the black hole swallows the neutron star, something remarkable: the surface of the neutron star is open like an eggshell! The immense gravity of the black hole extends and tears the crust of the neutron star and creates “star forces” similar to earthquakes on our planet. When the surface tore, the magnetic field of the neutron star – the billions of billions is stronger than the earth – will be heavily shaken. This creates waves that are referred to as Alfvén waves and finally create a outbreak of radio signals that could recognize future telescopes.
When the neutron star comes closer to the black hole, even more extreme physics takes over. When the neutron star finally plunges into the black hole, what scientist calls “Monster Shock Waves”, the most powerful shock waves that are predicted in the universe. These are like cosmic tsunamis that start small but grow to incredibly violent outbreaks of energy.
The most surprising, the simulations revealed something that has never been seen before: the birth of a black hole Pulsar. When the black hole consumes the neutron star, it also absorbs the strong magnetic field of the neutron star. But black holes don't want this magnetic luggage, so they essentially spin it while they turn and create magnetic winds that sweep through the room like a lighthouse jet. This creates a short cosmic lighthouse that lasts less than a second and the exemption of X-ray and gamma rays before they become dark forever.
These simulations help to know the astronomers what to look for when scanning the sky. While we have discovered gravitational waves from black collisions with instruments such as Ligo (laser interferometer gravitational wave wave observatory), we have not yet seen the light that has been accompanied by neutron star black hole fusions. Research suggests that these cosmic crashes may be demonstrable radio signals both when the neutron star races and if the monster shock waves could form. Future telescopes, including CalTech's planned selection of 2,000 radio dishes in Nevada, could catch these short cosmic screams.
The LIVINGSTON Observatory from Ligo (Credit: CalTech/with/Ligo) now know how to recognize these mergers up to a minute before they occur with gravitational shaft detectors. This would give astronomers precious time to show their telescopes in the right place in the sky to catch the light show that accompanies these cosmic disasters.
Scientists are now working on recognizing these mergers up to a minute before they occur with gravitational shaft detectors. This would give astronomers precious time to show their telescopes in the right place in the sky to catch the light show that accompanies these cosmic disasters.
Source: Sternbieben and monster shock waves
