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A stellar black hole (or stellar-mass black hole) is a black hole formed by the gravitational collapse of a star. [1] They have masses ranging from about 5 to several tens of solar masses. [2] They are the remnants of supernova explosions, which may be observed as a type of gamma ray burst. These black holes are also referred to as collapsars.
The average mass of known black holes of stellar origin in our galaxy is around 10 times the mass of our Sun. Until now, the weight record was held by a black hole in an X-ray binary in the Cygnus ...
List of most massive black holes Host or black hole name Mass (M ☉) Notes (Maximal Theoretical Limit) 2.7 × 10 11: This is the maximum mass of a black hole that models predict, at least for luminous accreting SMBHs. At around 10 10 M ☉, effects of both intense radiation and star formation in the accretion disc slow down black hole growth.
IGR J17091-3624 (candidate smallest known stellar black hole) [14] [15] LB-1 (name of both a galactic B-type star and a very closely associated over-massive stellar-mass black hole) [16] [17] M33 X-7 (stellar black hole with the most massive stellar companion, located in the Triangulum Galaxy) [18]
The black hole was found after researchers spotted fast-moving stars that are being pulled around as if they are close to an extreme object. ... including stellar-mass black holes with masses ...
When astronomers survey the vast expanse of the cosmos, they primarily stumble across two types of black holes.The first is a stellar-mass black hole—formed from the collapse of a star, these ...
The black hole's mass is 32.70 M ☉, the heaviest known stellar black hole in the Milky Way. The black hole Gaia BH3 is together with Cygnus X-1 the only known stellar black hole more massive than about 10 M ☉. The mass of Gaia BH3 is quite similar to the mass of merging binary black holes found via gravitational waves.
Gaia BH2 (Gaia DR3 5870569352746779008) is a binary system consisting of a red giant and what is very likely a stellar-mass black hole.Gaia BH2 is located about 3,800 light years away (1.16 kpc away) in the constellation of Centaurus, making it as of 2024 the third-closest known black hole system to Earth.