Re: This Week's Finds in Mathematical Physics (Week 238)
- From: charlls_quarra@xxxxxxxxxxxx
- Date: Fri, 27 Oct 2006 09:40:06 +0000 (UTC)
The original thread can be found in:
http://www.lepp.cornell.edu/spr/2006-08/msg0075123.html
some quotes:
So, dark matter is seeming more and more real. In fact, last year
folks found evidence for "ghost galaxies" made mainly of dark matter
and cold hydrogen, with very few stars:
6) PPARC, New evidence for a dark matter galaxy,
http://www.interactions.org/cms/?pid=1023641
Apparently the consensus is now that this ghost, VIRGOHI 21,
is hydrogen stripped off from a galaxy by the "wind" it felt
as it fell into the Virgo Cluster. This effect is called
"ram pressure stripping" - the gas of a galaxy can be stripped
off if the galaxy is moving rapidly through a cluster, due
to interaction with the gas in the cluster.
Do any of these observations provide any evidence that may discard the
MOND (Modified Newtonian Dynamics) hypothesis?
.
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