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|Title:||The Baryon Oscillation Spectroscopic Survey of SDSS-III|
Miralda Escudé, Jordi
Cuesta, Antonio J.
Pérez Ràfols, Ignasi
|Publisher:||Institute of Physics (IOP)|
|Abstract:||The Baryon Oscillation Spectroscopic Survey (BOSS) is designed to measure the scale of baryon acoustic oscillations (BAO) in the clustering of matter over a larger volume than the combined efforts of all previous spectroscopic surveys of large-scale structure. BOSS uses 1.5 million luminous galaxies as faint as i = 19.9 over 10,000 deg2 to measure BAO to redshifts z < 0.7. Observations of neutral hydrogen in the Lyalpha forest in more than 150,000 quasar spectra (g < 22) will constrain BAO over the redshift range 2.15 < z < 3.5. Early results from BOSS include the first detection of the large-scale three-dimensional clustering of the Lyalpha forest and a strong detection from the Data Release 9 data set of the BAO in the clustering of massive galaxies at an effective redshift z = 0.57. We project that BOSS will yield measurements of the angular diameter distance dA to an accuracy of 1.0% at redshifts z = 0.3 and z = 0.57 and measurements of H(z) to 1.8% and 1.7% at the same redshifts. Forecasts for Lyalpha forest constraints predict a measurement of an overall dilation factor that scales the highly degenerate DA (z) and H -1(z) parameters to an accuracy of 1.9% at z ~ 2.5 when the survey is complete. Here, we provide an overview of the selection of spectroscopic targets, planning of observations, and analysis of data and data quality of BOSS.|
|Note:||Reproducció del document publicat a: https://doi.org/10.1088/0004-6256/145/1/10|
|It is part of:||Astronomical Journal, 2012, vol. 145, num. 1, p. 10-41|
|Appears in Collections:||Articles publicats en revistes (Física Quàntica i Astrofísica)|
Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))
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