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: http://zebu.uoregon.edu/cosmo.html
Дата изменения: Mon Apr 19 20:05:09 1999 Дата индексирования: Mon Oct 1 19:44:20 2012 Кодировка: Поисковые слова: р р с |
Cosmological Issues:
SU(10), SU(16), SU(??) --> how will we ever know which one is correct?
Constraints on Baryon Density:
Conclusions: Dynamical determinations of Omega are quite difficult but over most scales they indicate a value less than 0.2
Detecting Dark Matter:
In practice, there are lots of difficulties:
When redshift surveys are combined with the COBE constraint one can make the following definitive statement:
Standard, biased CDM can't account simultaneously for both the small scale and large scale structure. Unbiased CDM does not help much either.
Now one is driven to consider:
So, things are getting complicated and there are not yet good enough observations to distinguish between the above combination of models (meaning that theory can now fill the literature ).
Determination of Cosmological Parameters:
First results (Oct. 94): h = 0.8 +/- 0.17
When corrected for small systematic errors h = 0.9 +/- 0.17
But hey there are now stars that are older than the Universe!
GO WHERE THE DATA LEADS --> Lambda is not ZERO!
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The Electronic Universe Project e-mail: nuts@moo.uoregon.edu