Astronomers have discovered a supermassive black hole with a flipped magnetic field

The intrigue surrounding black holes is something that fascinates every space enthusiast. The physics behind it have puzzled scientists for decades. These mysterious space elements are known as powerful cosmic engines because they provide energy for quasars and active galactic nuclei. We can discuss the magnetic field of a black hole, but a black hole does not have a magnetic field of its own. The dense plasma that surrounds black holes in the form of a dense disk results in a magnetic field around these black holes. While observing the galaxy 1ES 1927+654, located 239 million light-years away, scientists noticed a sudden change in brightness around the Milky Way’s massive black hole.

This has been attributed to a sudden change in the black hole’s magnetic field. While stars are known to have magnetic reversal, they are not believed to black holes, Our Sun reverses its magnetic field every 11 years. But a black hole is considered more stable in this respect.

A black hole’s plasma spins and charged particles in it generate a magnetic field as well as an electric current. The direction of plasma flow does not change spontaneously. Therefore, the magnetic field of a black hole is believed to be quite stable. But this latest observation about a black hole’s magnetic reversal has stunned scientists.

A report in Science Alert Having said That scientists observed this galaxy through an automated sky survey in 2018. Scientists observed that the Milky Way was 100 times brighter in visible light. Swift Observatory caught its glow in X-rays and ultraviolet to see beyond the visible light range. Data from archival observations showed that the Milky Way began to brighten by the end of 2017.

Initially, scientists believed that the increased brightness was due to the star passing through the galaxy’s black hole. But the event would have created a disruption that would tear the star apart. As this was not the case, the scientists continued their research of the galactic glow.

After studying the changes in the full spectrum of light, the scientists detected a sudden drop in X-rays. X-rays are the result of the spiraling of charged particles within an intense magnetic field. This change in X-rays indicates a sudden change in the magnetic field.

The researchers suggest that as the black hole accretion disk undergoes magnetic reversal, the magnetic field at the outer edges of the disk weakens. After the reversal is complete, the disc returns to its original position.

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