The mystery of glow around black holes and neutron stars

Abdul Hakim Mahmoud

The scientific journal "Astrophysical Journal" published in its issue issued last November 27, a scientific study carried out by two researchers in astrophysics from Columbia University in New York, and its results included an explanation of the causes of the glow caused by the most intense and most mysterious things in the universe, including the cause of incandescent The normal in space regions where black holes and neutron stars are found.

This study comes within the framework of the efforts of astrophysicists, to identify what is happening in the environment surrounding black holes and neutron stars, which could shed more light on understanding the universe.

Electromagnetic radiation in the universe
One of the cosmic puzzles that physicists research is the causes of these bright and strange flares emanating from the regions that host black holes and neutron stars.

Decades ago, scientists believed that the electromagnetic radiation emanating from neutron stars and black holes is due to the high energy radiation in which they are generated by electrons that move at nearly the speed of light, but the process by which these particles are accelerated remains a puzzle.

To understand the process in which electronic particles are accelerated, scientists have used a massive simulation process with a supercomputer, where they developed a model to calculate the mechanisms that accelerate charged particles, and illustrate how electrons that generate magnetic disturbances can surprisingly active radio waves.

In this direction, the paths of charged particles that fill magnetic fields have been analyzed subjectively, and simulations of magnetic fields surrounding black holes and neutron stars have shown new insights into the reasons for their amazing brilliance.

Energy particle acceleration puzzle
The researchers found that the exchange between the two states of disturbance and the reconnection of super-strong magnetic fields is behind the light from black holes and neutron stars, since simulations showed that molecules gather most of their energies through the process of random echoing at high speeds, and it is actually radiation emitted from the holes The black and neutron stars that make them shine, a phenomenon that we can observe on the ground, according to the statement of the researcher, Lorenz Cerrone, who participated in the study.

Serone added in the statement included in the Columbia University statement that the crucial point in this study is to determine the role played by magnetic reconnection in the turbulent environment, as magnetic reconnection is a change in the magnetic field connection, which is a basic physical process in which magnetic energy is released in an explosive manner It is responsible for many of the explosive phenomena in the universe.

Simone said simulations show that reconnection is the main mechanism that chooses molecules that will be subsequently accelerated by turbulent magnetic fields to the highest energies.

On the other hand, the researcher, Luca Comiso, who participated in the study, said that the region hosting black holes and neutron stars interspersed with very hot gases from charged particles.

Comiso adds that the magnetic field lines drawn by the chaotic movements of the gas lead to a strong magnetic reconnection, since thanks to the electric field caused by the exchange of states of reconnection and turbulence the particles accelerate to the most extreme energies, which are much higher than those in the most powerful accelerators on Earth, such as the collider The Large Hadroni in Cern.