Cosmology with Sloan Digital Sky Survey

Details Cosmology with Sloan Digital Sky Survey Cosmology with Sloan Digital Sky Survey

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004cfa..colle..23s&link_type=abstract

CfA Colloquium Lecture Series Talk

Physics

Scientific paper

I will review recent results from SDSS on galaxy clustering, weak lensing and Ly-alpha forest. In combination with WMAP these tracers of large scale structure give us an unprecedented view of the universe over a broad range of scales and epochs. I will describe how we can test fundamental theories of the universe with these observations, focusing on three questions: do neutrinos have mass? what provided initial seeds of structure in the universe? what is the nature of the dark energy? Existing SDSS data and corresponding analyses already greatly improve the precision of these tests, which will be improved further in the future. Achieving these goals requires not just better data, but also a better understanding of astrophysical processes such as physics of galaxy formation and physics of inter-galactic medium. I will describe recent progress in these areas.

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