eROSITA Sees Changes in the Most Powerful Quasar universetoday storybywill
. This allowed them to test theories about the X-ray properties of a high-mass, high-accretion AGN. This allowed them to measure the temperature of the X-rays being emitted, around 350 million K , more than 60,000 times the Sun’s surface temperature.
Visualization of a faint X-ray source detected by the eROSITA Final Equatorial-Depth Survey . Credit: MPE/Cluster Origins These results also allowed them to constrain the mass and growth rate of the central black hole, which they estimate to be 10 billion solar masses, and growing on the order of 100 solar masses per year. Moreover, observations by the eROSITA instrument showed how J1144 has evolved over time, including how its brightness varies over the course of a year but remains relatively consistent in terms of its energy spectrum.
Lastly, the team’s observations showed that while the black hole consumes some gas from its disk, another portion is ejected to become extremely powerful winds. This process transfers tremendous energy from the AGN into the host galaxy, blowing away gas and dust that would otherwise come together to form new stars.
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