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Astronomers discover Milky Way’s biggest stellar black hole

theguardian.com

41–50 of 79 posts

Re: Astronomers discover Milky Way’s biggest stellar black hole

#41
post #37

Largest "stellar" black hole in Milky Way. Not the "largest black hole" as some media are reporting it in their title. The largest black hole in Milky Way is million times more massive than our sun. Falls in super massive category.

So they found the biggest one that isn't really big

Re: Astronomers discover Milky Way’s biggest stellar black hole

#42
post #32

I was always under the impression there was only 1 black-hole in our galaxy, at it's centre.

There are many, many more, probably ranging in size to tinier than a period (.) to the 33 Sol mass (so far). The one at the center of the galaxy is along for the ride! A good video: https://www.youtube.com/watch?v=e-P5IFTqB98

> probably ranging in size to tinier than a period (.)

"Probably" is a strong word, these are very hypothetical, the lightest observed black hole has a mass of 3 Suns.

Re: Astronomers discover Milky Way’s biggest stellar black hole

#43
post #37

Largest "stellar" black hole in Milky Way. Not the "largest black hole" as some media are reporting it in their title. The largest black hole in Milky Way is million times more massive than our sun. Falls in super massive category.

So they found the biggest one that isn't really big

They didn’t find the biggest one, they found the biggest one they’ve found so far. Which in all probability is pretty small.

Re: Astronomers discover Milky Way’s biggest stellar black hole

#45
post #32

Earlier quoted context omitted.

There are many, many more, probably ranging in size to tinier than a period (.) to the 33 Sol mass (so far). The one at the center of the galaxy is along for the ride! A good video: https://www.youtube.com/watch?v=e-P5IFTqB98

> probably ranging in size to tinier than a period (.) "Probably" is a strong word, these are very hypothetical, the lightest observed black hole has a mass of 3 Suns.

A three solar mass black hole is still only ~13km across. Not full-stop-sized, but closer to that than the diameter of the sun.

Re: Astronomers discover Milky Way’s biggest stellar black hole

#47
post #33
post #28

Earlier quoted context omitted.

I hadn't heard of the distinction stellar or non-stellar black hole before. It rather sounds like semantics to me to say this is one type of black hole and not another when it's physically the same thing and we don't know how it formed to begin with The headline confused me as well: 33 solar masses (not sizes) seems tiny to me, I was sure we knew of bigger ones

The distinction is clear and relevant because the mass distribution is strongly bimodal. A stellar black hole is the result of the gravitational collapse of a single star (well, or two at most). And maybe some of them have since then merged with a companion body. There are zillions of these in any given galaxy. Whereas there are maybe one or two supermassive black holes per galaxy, sitting in the center, with mass of…

It’s quite easy to describe the origin of a supermassive black hole.

It was just a stellar black hole that optimized logistics and utilized its gravitational pull to offer free shipping and one click accretion.

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