Existence of dark matter questioned

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  • #26
wolram
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http://spaceflightnow.com/news/n0103/23darkmatter/

While the focus of the paper is on the potential for white dwarfs to explain the dark matter in the galaxy, the research also plays a role in understanding stellar evolution. "These cool white dwarfs are the fossils of the early population of halo stars," explained Vanderbilt University astronomer Didier Saumon, a co-author on the paper. "There is much to learn about how galaxies form, and about how stars form in the process, from studying this population of white dwarfs."
 
  • #27
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Originally posted by wolram
http://physicsweb.org/article/news/8/2/4

6 February 2004

Many astronomers believe that the universe is dominated by cold 'dark matter' and 'dark energy' - a view that has been confirmed by recent measurements on the cosmic background radiation. Now, however, a group of astrophysicists in the UK has found that this radiation - the microwave 'echo' of the big bang - may in fact have been modified or 'corrupted' as it passed through galaxy clusters on its way to Earth. The result could undermine previous evidence for both dark matter and energy (Monthly Notices of the Royal Astronomical Society

http://arxiv.org/abs/astro-ph/0306180
Seems some are linking the Halo Mass to the Luminosity of Galaxies?

:http://arxiv.org/abs/astro-ph/0402500

Of course this is new, essentially empirical, and comes at least four days after this:https://www.physicsforums.com/showthread.php?s=&threadid=14492&perpage=10&pagenumber=2
 
  • #28
wolram
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posted bt ranyart.

Seems some are linking the Halo Mass to the Luminosity of Galaxies?
-------------------------------------------------------------------
ranyart, maybe there is a lot of catching up in astro phys
as so many "new" discoveries are made, it seems to me that
old models will have to be thrown out if these observations
are confirmed.


:smile: one up to you.
 

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