Re: This Week's Finds in Mathematical Physics (Week 238)



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?

.



Relevant Pages

  • Tidal effects of WIMP-based dark matter on galaxies?
    ... sis for explaining the Dark Matter phenomenon. ... I think the assumption is that in general a galaxy or a cluster ... of galaxies sits inside a much more massive cloud of DM, ...
    (sci.physics.research)
  • Galactic Rotational Curves and The Dark Matter Myth:
    ... Galactic Rotation Curves and the Dark Matter Myth, ... brought about by a miss-reading of the evidence using the Doppler shift ... (assuming a galaxy of the mass and size of the Milky Way)" This force on ... Dr. Smid points out that the actual visible mass of the ...
    (sci.physics)
  • Re: GTR and galactic rotation curves
    ... >> infer them from what we can see from the solar system. ... if we has such level of evidence for so-called Dark Matter ... >> detect it in the lab. ...
    (sci.physics)
  • Re: GTR and galactic rotation curves
    ... >> Just as much as we saw 'evidence' of Planet Vulcan... ... >>> infer them from what we can see from the solar system. ... if we has such level of evidence for so-called Dark Matter ... > Revise your position that anyone claims dark matter "excludes itself" ...
    (sci.physics)
  • Re: Natural selection and favorable traits how were they measured ?
    ... The Andromeda Galaxy is the closest major Galaxy to our Milky ... So you claim, without evidence. ... observations not laws, there is no such thing as a law of physics). ... This seems to be a variant of where did Cain get his wife, ...
    (talk.origins)