This black hole image shows the presence of a gigantic magnetic field

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Remember, in 2019, scientists at Event Horizon Telescope (EHT) delivered, for the first time, the image of a black hole surrounded by a pretty golden crown, which is actually an accretion disk. (when matter is captured by the force of gravity) of ionized gas. It orbits around the black hole at very high speed (1000 km / s) before being engulfed.

Scientists at EHT have now delivered a new image of this black hole located in the middle of the galaxy M87, which is more than 55 million light years from Earth.It shows that the accretion disk emits a large amount of polarized light. An electromagnetic wave is polarized if its oscillations are in a certain direction. In the present case, this shows that the immediate surroundings of the black hole are subjected to a powerful magnetic field.

This discovery helps explain why this black hole is able not only to swallow matter, but also to push it back in the form of immense jets.“Observations suggest that the magnetic fields at the edge of the black hole are strong enough to repel hot gas and help it resist the force of gravity.”, said Jason Dexter, assistant professor at the University of Colorado Boulder, in a statement.The luminous vortex shown in the photo is gas which, in fact, is not repelled. It escapes the magnetic field by twisting its way into the interior of the black hole.

Source : EHT

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