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A black hole formed in this way is called a primordial black hole and is the most widely accepted hypothesis for the possible creation of micro black holes. Computer simulations suggest that the probability of formation of a primordial black hole is inversely proportional to its mass.
IGR J17091 is a stellar mass black hole with a mass between 3 and 10 M ☉. It is a binary system in which a star orbits the black hole. [4] Its small size may make it a candidate for the smallest black hole discovered. [5] However, as of 2017 its mass was described as "unknown". [6]
OJ 287 core black holes — a BL Lac object with a candidate binary supermassive black hole core system [23] PG 1302-102 – the first binary-cored quasar — a pair of supermassive black holes at the core of this quasar [24] [25] SDSS J120136.02+300305.5 core black holes — a pair of supermassive black holes at the centre of this galaxy [26]
It also resulted in the smallest black hole ever observed. “We can now see the moment where atomic nuclei and electrons are uniting in the afterglow,” Rasmus Damgaard, co-author of the study ...
The mass of the black hole in GRO J0422+32 falls in the range 3.66 to 4.97 solar masses. [6] This is the smallest yet found for any stellar black hole, and near the theoretical upper mass limit (~2.7 M ☉) for a neutron star. Further analysis in 2012 calculated a mass of 2.1 M ☉, which raises questions as to what the object actually is. [7]
The science and philosophy channel Kurzgesagt has come out with a mind-blowing size comparison of the universe's black holes. The post Black Hole Size Comparison Chart Gives New View of Universe ...
XTE J1650−500 is a binary system containing a stellar-mass black hole candidate and 2000–2001 transient binary X-ray source located in the constellation Ara. In 2008, it was claimed that this black hole had a mass of 3.8±0.5 solar masses , [ 3 ] which would have been the smallest found for any black hole; smaller than GRO 1655−40 , the ...
This black hole, called V404 Cygni, has been extensively studied since being confirmed in 1992. It previously was believed to be orbiting with only one other star, but data from the European Space ...