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Old December 24th 12, 09:35 AM posted to sci.astro
Yousuf Khan[_2_]
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Default It seems that as Dark Energy increases, Dark Matter decreasesas time goes on

On 21/12/2012 6:03 PM, Steve Willner wrote:
SW Dark matter is just matter. Its exact nature is
SW unknown except that most of it is non-baryonic.

In ,
writes:
Based on what is this conclusion reached?


Originally on abundances of light nuclides:
http://astro.berkeley.edu/~mwhite/darkmatter/bbn.html

Nowadays I think CMB fluctuations provide tighter constraints:
http://map.gsfc.nasa.gov/resources/camb_tool/index.html


Isn't it true that the reasons for the CMB spectrum are complete
guesswork? Originally before the discovery of Dark Energy, it was
thought that the spectrum was as a result of neutrinos? The previous
best model for CMB was known as "Mixed Dark Matter", which consisted of
80% CDM & 20% neutrinos. The Mixed Dark Matter model fit the CMB just as
well as Lambda-CDM did, and it still does, except that Dark Energy is
now the curve-fit-du-jour.

Mixed dark matter - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/Mixed_dark_matter

Yousuf Khan