Re: Dark matter

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Article #3813

#3813

From: Benjamin Weiner
Date: Thu, 28 Jan 1993 22:36

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buell@phyast.nhn.uoknor.edu (Jim Buell) writes:

>I got this from a colloquium speaker at my department. Those
>people who try to explain the structure of the Universe 
>believe that you need both two types of dark matter to
>get both superclusters and a Universe with omega=1.

Lately various popular models (eg CDM) have been coming under pressure -
but in all honesty, if you ask two theorists, you'll get three opinions,
so take everything everybody says with a grain of salt.  We don't really
know enough to rule many of the models in or out (plus, using two kinds
of dark matter doubles the number of free parameters!  You can fit models
where the universe is a giant slab of stale tofu with enough free 
parameters, IMHO).

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<24JAN199319274130@pavo.concordia.ca> <ETHANB.93Jan24231246@ptolemy.astro.washington.edu> <phfrom.441@nyx.uni-konstanz.de> <buell.728066564@phyast.nhn.uoknor.edu>

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Path: arc1-ca.pugleaf.net!sparky!uunet!dziuxsolim.rutgers.edu!ruhets.rutgers.edu!bweiner
From: bweiner@ruhets.rutgers.edu (Benjamin Weiner)
Newsgroups: sci.astro
Subject: Re: Dark matter
Message-ID: <Jan.28.17.36.33.1993.23713@ruhets.rutgers.edu>
Date: 28 Jan 93 22:36:33 GMT
References: <24JAN199319274130@pavo.concordia.ca> <ETHANB.93Jan24231246@ptolemy.astro.washington.edu> <phfrom.441@nyx.uni-konstanz.de> <buell.728066564@phyast.nhn.uoknor.edu>
Organization: Rutgers Univ., New Brunswick, N.J.
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