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- Newsgroups: sci.physics
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!ira.uka.de!math.fu-berlin.de!news.belwue.de!news.uni-tuebingen.de!convex!psikr01
- From: psikr01@convex.zdv.uni-tuebingen.de (Peter Kretschmar)
- Subject: Re: hubble and black hole
- Message-ID: <psikr01.722543408@convex>
- Sender: news@softserv.zdv.uni-tuebingen.de (News Operator)
- Organization: Comp. Center (ZDV) U of Tuebingen, FRG
- References: <1elv7lINNikd@bigboote.WPI.EDU> <FRANL.92Nov21141214@draco.centerline.com>
- Date: Mon, 23 Nov 1992 18:30:08 GMT
- Lines: 20
-
- In <FRANL.92Nov21141214@draco.centerline.com> franl@centerline.com (Fran Litterio) writes:
-
- >llew@bigwpi.WPI.EDU (Lok C. Lew Yan Voon) writes:
-
- >> anyway, nbc news had a short piece 2 days ago that the
- >> space telescope had resolved the nucleus of a galaxy
- >> [... stuff deleted ...]
- >> apparently, it's highly unlikely to be anything but a black hole.
-
- >I want to know why it can't be a really massive neutron star.
-
- Neutron stars *can't* get very massive. If the evolving rest of a massive
- star has more than about 1.4 solar masses it will evolve into a black hole.
- Caution: don't equate this critical mass with the mass of the progenitor,
- the original star. A lot of the mass of a star can be lost in the last
- phases of it's evolution, before becoming a white dwarf, neutron star, or
- black hole.
- --
- Peter Kretschmar
- psikr01@convex.zdv.uni-tuebingen.de
-