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The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: measuring D-A and H at z=0.57 from the baryon acoustic peak in the Data Release 9 spectroscopic Galaxy sample

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The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: measuring D-A and H at z=0.57 from the baryon acoustic peak in the Data Release 9 spectroscopic Galaxy sample

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dc.contributor.author Anderson, Lauren
dc.contributor.author Mena Requejo, Olga
dc.date.accessioned 2014-07-24T08:50:37Z
dc.date.available 2014-07-24T08:50:37Z
dc.date.issued 2014
dc.identifier.citation Anderson, Lauren Mena Requejo, Olga 2014 The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: measuring D-A and H at z=0.57 from the baryon acoustic peak in the Data Release 9 spectroscopic Galaxy sample Monthly Notices of the Royal Astronomical Society 439 1 83 101
dc.identifier.uri http://hdl.handle.net/10550/37295
dc.description.abstract We present measurements of the angular diameter distance to and Hubble parameter at z=0.57 from the measurement of the baryon acoustic peak in the correlation of galaxies from the Sloan Digital Sky Survey III Baryon Oscillation Spectroscopic Survey. Our analysis is based on a sample from Data Release 9 of 264,283 galaxies over 3275 square degrees in the redshift range 0.43<z<0.70. We use two different methods to provide robust measurement of the acoustic peak position across and along the line of sight in order to measure the cosmological distance scale. We find D_A(0.57) = 1408 +/- 45 Mpc and H(0.57) = 92.9 +/- 7.8 km/s/Mpc for our fiducial value of the sound horizon. These results from the anisotropic fitting are fully consistent with the analysis of the spherically averaged acoustic peak position presented in Anderson et al, 2012. Our distance measurements are a close match to the predictions of the standard cosmological model featuring a cosmological constant and zero spatial curvature.
dc.language.iso eng
dc.relation.ispartof Monthly Notices of the Royal Astronomical Society, 2014, vol. 439, num. 1, p. 83-101
dc.subject Física
dc.title The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: measuring D-A and H at z=0.57 from the baryon acoustic peak in the Data Release 9 spectroscopic Galaxy sample
dc.type journal article es_ES
dc.date.updated 2014-07-24T08:50:37Z
dc.identifier.doi 10.1093/mnras/stt2206
dc.identifier.idgrec 097562
dc.rights.accessRights open access es_ES

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