The Baryon Oscillation Spectroscopic Survey: Precision measurements of the absolute cosmic distance scale

Details The Baryon Oscillation Spectroscopic Survey: Precision measurements of the absolute cosmic distance scale The Baryon Oscillation Spectroscopic Survey: Precision measurements of the absolute cosmic distance scale

2009-02-26

arxiv.org/abs/0902.4680v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

Unpublished SDSS-III white paper for the US Decadal Survey. See http://www.sdss3.org for details of the international SDSS-III

Scientific paper

BOSS, the Baryon Oscillation Spectroscopic Survey, is a 5-year program to measure the absolute cosmic distance scale and expansion rate with percent-level precision at redshifts z<0.7 and z~2.5. BOSS uses the "standard ruler" provided by baryon acoustic oscillations (BAO). BOSS will achieve a near optimal measurement of the BAO scale at z<0.7, with a redshift survey of 1.5 million luminous galaxies. It will pioneer a new method of BAO measurement at high redshift, using the LyA forest to 160,000 QSOs in the redshift range 2.1

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