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WHICH TYPE OF STAR TURNS INTO A BLACK HOLE HOW TO

A mass of gas falling rapidly into a black hole is estimated to give off more than 100 times as much energy as is released by the identical amount of mass through nuclear fusion. Various astronomers have speculated that large volumes of interstellar gas collect and collapse into supermassive black holes at the centres of quasars and galaxies. Some black holes apparently have nonstellar origins. Discovered in 1971 in the constellation Cygnus, this binary consists of a blue supergiant and an invisible companion 14.8 times the mass of the Sun that revolve about one another in a period of 5.6 days. One of the component stars of the binary X-ray system Cygnus X-1 is a black hole. For example, if a black hole is a member of a binary star system, matter flowing into it from its companion becomes intensely heated and then radiates X-rays copiously before entering the event horizon of the black hole and disappearing forever.

They can be “observed,” however, by the effects of their enormous gravitational fields on nearby matter. Stars with a smaller amount of mass evolve into less compressed bodies, either white dwarfs or neutron stars.īlack holes usually cannot be observed directly on account of both their small size and the fact that they emit no light. Only the most massive stars-those of more than three solar masses-become black holes at the end of their lives. Mars and the Milky Way are more than just candy bars! See how much more you know about space with this quiz.

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WHICH TYPE OF STAR TURNS INTO A BLACK HOLE HOW TO

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