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A black hole is a region of spacetime where gravity is so strong that no matter or electromagnetic radiation, such as light, can escape it. [2] Albert Einstein's theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. [3] [4] The boundary of no escape is called the event horizon.
The first “black hole triple” system has been spotted by physicists some 8,000 light-years away, challenging the current understanding of how these space objects form. Most black holes are ...
Stellar black hole – black hole formed by the gravitational collapse of a massive star. [1] They have masses ranging from about three to several tens of solar masses. Intermediate-mass black hole – black hole whose mass is significantly more than stellar black holes yet far less than supermassive black holes.
These minuscule black holes, due to their small size, would have been able to pick up a rare and exotic property from the quark-gluon soup in which they formed, called a “color charge.”
The black hole mass is tied to the host galaxy bulge or spheroid mass. Metallicity has a positive correlation with the absolute magnitude (luminosity) of a galaxy. Astronomers now believe that disk galaxies likely formed first, then evolved into elliptical galaxies through galaxy mergers.
Acoustic black hole. To test this prediction, Steinhauer created an analogue black hole using extremely cold atoms trapped in a laser beam. When he applied a second laser beam, it made a sort of ...
A binary black hole (BBH), or black hole binary, is a system consisting of two black holes in close orbit around each other. Like black holes themselves, binary black holes are often divided into binary stellar black holes , formed either as remnants of high-mass binary star systems or by dynamic processes and mutual capture; and binary ...
The triple system would have broken apart, they said, if the star that became a black hole had exploded. A black hole is thought to form when a large star exhausts the nuclear fuel at its core and ...