Dark Lessons from the Sloan Digital Sky Survey

Details Dark Lessons from the Sloan Digital Sky Survey Dark Lessons from the Sloan Digital Sky Survey

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..379...89n&link_type=abstract

Cosmic Frontiers ASP Conference Series, Vol. 379, proceedings of the conference held 31 July-4 August 2006 at Durham University,

Physics

2

Scientific paper

The true nature of dark energy remains unclear: It is either a strange fluid in the Universe, with a negative effective pressure, or a breakdown in General Relativity on large scales. This question can only be answered through a suite of different observations as a function of redshift. In this paper, I will briefly review our attempts to achieve this goal using data from the Sloan Digital Sky Survey (SDSS). In particular, I will present new measurements of the Baryon Acoustic Oscillations (BAO) from the SDSS DR5 galaxy redshift survey as well as outline the on--going SDSSII Supernova survey, which has already detected (in 2005--06) over 300 SNe Ia's over the redshift range 0.05

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