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  2. Black hole - Wikipedia

    en.wikipedia.org/wiki/Black_hole

    A black hole with the mass of a car would have a diameter of about 10 −24 m and take a nanosecond to evaporate, during which time it would briefly have a luminosity of more than 200 times that of the Sun. Lower-mass black holes are expected to evaporate even faster; for example, a black hole of mass 1 TeV/c 2 would take less than 10 −88 ...

  3. Binary black hole - Wikipedia

    en.wikipedia.org/wiki/Binary_black_hole

    Computer simulation of the black hole binary system GW150914 as seen by a nearby observer, during its final inspiral, merge, and ringdown. The star field behind the black holes is being heavily distorted and appears to rotate and move, due to extreme gravitational lensing, as space-time itself is distorted and dragged around by the rotating black holes.

  4. Sagittarius A* - Wikipedia

    en.wikipedia.org/wiki/Sagittarius_A*

    Sagittarius A*, abbreviated Sgr A* ( / ˈsædʒˈeɪstɑːr / SADGE-AY-star [3] ), is the supermassive black hole [4] [5] [6] at the Galactic Center of the Milky Way. Viewed from Earth, it is located near the border of the constellations Sagittarius and Scorpius, about 5.6° south of the ecliptic, [7] visually close to the Butterfly Cluster (M6 ...

  5. Supermassive black hole - Wikipedia

    en.wikipedia.org/wiki/Supermassive_black_hole

    Supermassive black holes are classically defined as black holes with a mass above 100,000 ( 105) solar masses ( M☉ ); some have masses of several billion M☉. [12] Supermassive black holes have physical properties that clearly distinguish them from lower-mass classifications. First, the tidal forces in the vicinity of the event horizon are ...

  6. List of most massive black holes - Wikipedia

    en.wikipedia.org/wiki/List_of_most_massive_black...

    The supermassive black hole at the core of Messier 87, here shown by an image by the Event Horizon Telescope, is among the black holes in this list.. This is an ordered list of the most massive black holes so far discovered (and probable candidates), measured in units of solar masses (M ☉), approximately 2 × 10 30 kilograms.

  7. Primordial black hole - Wikipedia

    en.wikipedia.org/wiki/Primordial_black_hole

    Primordial black hole. Formation of the universe without (above) and with (below) primordial black holes. In cosmology, primordial black holes ( PBHs) are hypothetical black holes that formed soon after the Big Bang. In the inflationary era and early radiation-dominated universe, extremely dense pockets of subatomic matter may have been tightly ...

  8. Oppenheimer–Snyder model - Wikipedia

    en.wikipedia.org/wiki/Oppenheimer–Snyder_model

    In general relativity, the Oppenheimer–Snyder model is a solution to the Einstein field equations based on the Schwarzschild metric describing the collapse of an object of extreme mass into a black hole. [1] It is named after physicists J. Robert Oppenheimer and Hartland Snyder, who published it in 1939. [2]

  9. List of black holes - Wikipedia

    en.wikipedia.org/wiki/List_of_black_holes

    1ES 2344+514. Ton 618 (this quasar has possibly the biggest black hole ever found, estimated at 66 billion solar masses) [1] 3C 371. 4C +37.11 (this radio galaxy is believed to have binary supermassive black holes) [2] AP Lib. S5 0014+81 (said to be a compact hyperluminous quasar, estimated at 40 billion solar masses) [3] APM 08279+5255 ...