Black Hole Discovered That Can Reverse Magnetic Field

What we can call extremely powerful ‘cosmic engines’ black holesIt is one of the most mysterious cosmic objects that people are most curious about. These extremely powerful structures provide the energy behind quasars and other active galactic nuclei (AGNs) due to matter’s interaction with its strong gravitational and magnetic fields.

Technically speaking, black holes do not have a magnetic field of their own, while the surrounding black hole of dense plasma It is known to have a magnetic field. This plasma, rotating around the black hole, creates an electric current and magnetic field thanks to the charged particles inside. The fact that the direction of the plasma flow does not change by itself means that the magnetic field is extremely stable means it is. However, according to the latest information discovered, astronomers capable of reversing the magnetic field It looks like he may have found evidence of the existence of a supermassive black hole.

Astronomers notice that a galaxy hundreds of millions of light-years away suddenly ‘shine’

Recently, the world of astronomers has faced evidence pointing to the existence of a black hole reversing its magnetic field. to shock has suffered.

Basically, you can think of a magnetic field like the magnetic field in a simple magnet with a north and south pole. A magnetic reversal can be defined as a reversal of the direction of this imaginary pole and a change of direction of the magnetic field. This effect is quite common among stars. For example, the Sun, the main star of the Solar System of which our planet is a part, changes its magnetic field. every 11 years reverses it. even the world every few hundred thousand years undergoes magnetic reversal.

However, this is not the case for supermassive black holes. not likely was thought. At least until now. An automated survey of the sky took place in a galaxy 239 million light-years away in 2018. a sudden change Has detected. The galaxy, known as 1ES 1927+654, appears to be larger than before in visible light. 100 times was brighter. Shortly after its discovery, the Swift Observatory captured the galaxy’s light with X-rays and ultraviolet. Archival observations of the region reveal that the galaxy is actually towards the end of 2017 revealed that he was beginning to shine.

First evidence to show that black holes can reverse their magnetic field

What caused this flash back then was the galaxy’s supermassive black hole. a passing star was thought to be. In theory, such a close encounter should shatter the star and cause a tidal perturbation that would disrupt the gas flow in the black hole’s accretion disk. However, the new study shows that the situation is much more than that. different shows it can happen.

The research team studied observations of galactic flare across the entire spectrum of light, from radio to X-rays. One of the things that caught the team’s attention during this review was the intensity of the X-rays. very quickly was falling. Considering that X-rays are usually produced by charged particles spiraling in intense magnetic fields, this is mind-blowing magnetic fields around the black hole.a sudden change it may have occurred.

However, the team also found that the intensity of visible and ultraviolet light in the galaxy is increasing observed. This means that fragments of the black hole’s accretion disk are further you’re warming up shows; however, none of the effects we have mentioned are the ones expected to be experienced as a result of a tidal interruption event as predicted.

Judging by the available data, astronomers magnetic reversal theory He thinks it is much more appropriate for this situation. According to the team’s statements on the subject, in case of a reverse rotation in the magnetic field of a black hole accretion disk, the field will first appear on the outer edges of the accretion disk. attenuation has to occur. As a result, the disc can heat up more efficiently. In addition, a weaker magnetic field is driven by charged particles. less X-rays are produced means. After the magnetic field reversal completes, the disk returns to its original state.

This evidence suggests that a galactic black hole can be magnetically reversible. first observations stands out as. While it is now known that this is possible, it is not yet known how often it occurs. To find out how many times a galaxy’s black hole can reverse its magnetic field, researchers much more detailed observations states that it should be done.