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Definition Of "Critical Mass" For BH

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Posted by pmb on July 16, 2000 12:18:40 UTC

Okay. I found the definition that I was seeking.

From An Introduction to Black Holes



Formation of a Black Hole:

Imagine a star which is much more massive than our sun, and which has a mass, called the critical mass, which is large enough to cause a black hole to form. What keeps this star from collapsing onto itself and becoming a black hole? The answer is that there is an intense pressure caused by nuclear reactions within the sun. When the fuel that feeds the nuclear reactions gets used up the massive star cannot support itself anymore. It then collapses to form a black hole.

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