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Dr. Mabuse
Septic Fiend

Sweden
9687 Posts
Posted - 07/30/2004 :  01:49:15   [Permalink]  Show Profile  Send Dr. Mabuse an ICQ Message Send Dr. Mabuse a Private Message
This is weird...

They are talking about black holes small as mountins. The minimum weight for a black hole to form from a dying star is between 3 and 4 solar masses. Are they implying that once a black hole is formed, it may decrease in size below that limit?
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Ricky
SFN Die Hard

USA
4907 Posts
Posted - 07/30/2004 :  05:53:07   [Permalink]  Show Profile  Send Ricky an AOL message Send Ricky a Private Message
Well remember, its not just area, its density.
Why continue? Because we must. Because we have the call. Because it is nobler to fight for rationality without winning than to give up in the face of continued defeats. Because whatever true progress humanity makes is through the rationality of the occasional individual and because any one individual we may win for the cause may do more for humanity than a hundred thousand who hug their superstitions to their breast.
- Isaac Asimov
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Valiant Dancer
Forum Goalie

USA
4826 Posts
Posted - 07/30/2004 :  06:19:34   [Permalink]  Show Profile  Visit Valiant Dancer's Homepage Send Valiant Dancer a Private Message
quote:
Originally posted by Dr. Mabuse

This is weird...

They are talking about black holes small as mountins. The minimum weight for a black hole to form from a dying star is between 3 and 4 solar masses. Are they implying that once a black hole is formed, it may decrease in size below that limit?


These are the mini-black holes formed when the universe was very very young when the physics allowed for smaller black holes to exist as postulated by Hawking. I believe that the star needs to be 3-4 solar masses to be originally formed now, they definately can keep cohesion below the 3-4 solar masses limit for a collapse of a dying star to form one.
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