https://spacescoop.org/en/scoops/2602/a-rule-breaking-supermassive-black-hole/
Astronomers have spotted a supermassive black hole, or SMBH, that
is breaking all the rules! Well, one rule anyway. It’s called
eROSITA Final Equatorial Depth Survey, or eFEDS,
J084222.9+001000. Whew! It is also called ID830, don’t ask me
why, so that’s what I’ll call it. Way easier!
Anyway…
Most galaxies have a supermassive black hole at their center.
They grow by sucking down clouds of gas & dust nearby - like
a powerful vacuum cleaner in space. As the black hole, uh, eats,
the gas swirls inward and heats up the surroundings, making it
‘glow’ in all kinds of light.
Sometimes astronomers see this as a bright flare in X-ray light,
and sometimes as jets, glowing in radio light. There is a speed
limit, of a sort, for how fast SMBHs can eat, called the
Eddington limit. It’s named after Sir Arthur Eddington who first
proposed this natural limit to stellar luminosity.
If they eat too fast, the gas heats up and the energy released by
the hot gas, lots of different kinds of light radiation, begins
to push back on the incoming gas flowing in behind it, slowing
things down.
Kinda like a traffic jam.
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