Astronomy Stack Exchange
Astronomy Stack Exchange

Questions tagged [supermassive-black-hole]

Questions regarding the most massive examples of black holes that typically reside at the centers of galaxies.

Supermassive black holes are a special type of black holes with masses in many millions of times that of the Sun. Their exact formation is unknown. They typically reside at the center of galaxies; our galaxy, the Milky Way, has a supermassive black hole at its center, Sagittarius A*.

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How can a supermassive black hole be 13 billion years old?

A supermassive black hole was discovered recently that is 13 billion years old. This blackhole is 1.6 billion times the mass of the sun. How can this blackhole have formed so quickly after the big bang? Do theories predict supermassive black holes…
Natsfan
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What conditions would lead to this event around the black hole in the Pictor A galaxy?

This is a picture of a jet of particles exiting the supermassive black hole in the center of Pictor A galaxy at nearly the speed of light. Source This event is supposedly created from a black hole of 40 million solar masses. The full quote…
CipherBot
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Will the universe eventually merge completely into a single, enormous BH

I see other similar questions, but mine is more specific: If total merger into one BH is the ultimate endgame, then if the universe had no net angular momentum in the beginning, then wouldn't the final BH also have no spin? So can Kerr BHs can…
Paul
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Could the largest SMBH swallow an entire galaxy?

It is unlikely that the largest supermassive black hole in the universe has already been discovered, there may be much larger ones. Are there, or could there be, supermassive black holes large enough to swallow whole galaxies as opposed to the…
Michael Walsby
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What happens when an Ultra Massive Black Hole cannibalize another?

Say hypothetically an UMBH with 50 billion solar masses (supposedly upper limit) is beginning to merge with another (Super)MBH similar to Sagittarius A* that sits at the center of the Milky Way Galaxy, what would happen next in this clash of the…
user6760
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Image of the black hole

The first ever image of a black hole shows a circular black central portion surrounded by an illuminated accretion disk. If a black hole wraps spacetime completely around it, then in any direction it should look like a fireball totally illuminated…
Mohan Mone
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Black holes at the center of galaxies

At the center of massive galaxies there is a huge and massive black hole that radiates gamma rays. So at the center of the Milky Way there is also a huge and massive black hole and it also radiates gamma rays. Do these gamma rays reach our solar…
Swadhin
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Quantum tunneling in black holes

My hypothesis is: "quantum tunneling in black hole". The matter which is consumed by a black holes is shifting to another part of the universe by quantum tunneling. Can it be possible?
Tony Stark
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