A black hole might have reversed the magnetic field of its host right in front our eyes.
The story begins in a galaxy called 1ES 1927+654, where Xray emissions briefly stopped for a few weeks, but then resumed and increased. The potential has been realized so far. Black holeThe unique observation of observations is visible from 236 millions light-years distant.
“This is the first time that we’ve seen Xrays drop out completely while other wavelengths glow,” Sibasish Laha, a lead researcher at the University of Maryland, Baltimore County, and NASA’s Goddard Space Flight Center in Maryland stated in a NASA NASA press release. Statement.
If scientists can confirm that the explosion was caused by a Supermassive black holesAccording to the statement, the event at the heart the galaxy’s magnetic field changed may help astrophysicists better understand how this switch affects the black holes environment.
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The Milky WayIt, and most large galaxies similar to it, has a supermassive dark hole embedded at its core. The black hole pulls matter towards its center. The matter collects first in an accretion disk surrounding the black hole. As the matter is pushed into its center, it heats up and emits visible, ultraviolet, and X-ray light.
As the matter pushes inwards, it forms a cloud filled with extremely hot particles scientists call a corona. The new study suggests that changes to the corona caused the temporarily disappearance of the Xrays coming from the heart 1ES 1927+654 galaxy.
If a magnetic reverse occurred, causing the south pole to become its north pole, and vice versa. The visible and UV light should increase toward center of galaxy due to increased heating. As the corona diminishes, the accretion disk becomes smaller in the center.
Researchers suggested that as the flip develops, the field weakens to the point where the corona is no longer supported, and the X-ray emission ceases.
This idea is supported by observations of this galaxy. In October 2018, X-ray emissions disappeared for four months. This suggests that there was a magnetic reversal. In summer 2021, the galaxy returned to its pre-eruption levels of X-ray emission.
Two space telescopes monitored the changes in ultraviolet- and Xrays, including NASA’s. Neil Gehrels Swift ObservatoryEuropean Space Agency XMM-Newton satellite. Many ground-based telescopes were used to observe visible light and radio waves in places like New Mexico, Italy, and the Canary Islands.
A PaperBased on the research, this article has been accepted for publication by The Astrophysical Journal. It is also available on arXiv.org.
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