The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: single-probe measurements from CMASS anisotropic galaxy clustering

Chuang, Chia-Hsun; Prada, Francisco; Pellejero Ibanez, Marcos; Beutler, Florian; Cuesta, Antonio; Eisenstein, Daniel J.; Escoffier, Stephanie; Ho, Shirley; Kitaura, Francisco-Shu; Kneib, Jean Paul; Manera, Marc; Nuza, Sebastian Ernesto; Rodriguez Torres, Sergio A.; Ross, Ashley; Rubiño Martín, J. A.; Samushia, Lado; Schlegel, David J.; Schneider, Donald P.; Wang, Yuting; Weaber, Benjamin A.; Zao, Gongbo; Brownstein, Joel R.; Dawson, Kyle S.; Maraston, Claudia; Olmestead, Matthew D.; Thomas, Daniel
Publication Year
Published version
With the largest spectroscopic galaxy survey volume drawn from the SDSS-III Baryon Oscillation Spectroscopic Survey (BOSS), we can extract cosmological constraints from the measurements of redshift and geometric distortions at quasi-linear scales (e.g. above 50 h−1 Mpc). We analyse the broad-range shape of the monopole and quadrupole correlation functions of the BOSS Data Release 12 (DR12) CMASS galaxy sample, at the effective redshift z = 0.59, to obtain constraints on the Hubble expansion rate H(z), the angular- diameter distance DA(z), the normalized growth rate f(z)σ8(z), and the physical matter density Ωm h2. We obtain robust measurements by including a polynomial as the model for the systematic errors, and find it works very well against the systematic effects, e.g. ones induced by stars and seeing. We provide accurate measurements {DA(0.59)rs,fid/rs, H(0.59)rs/rs,fid, f(0.59)σ8(0.59), Ωm h2} = {1427 ± 26 Mpc, 97.3 ± 3.3  km s−1 Mpc−1, 0.488 ± 0.060, 0.135 ± 0.016}, where rs is the comoving sound horizon at the drag epoch and rs,fid = 147.66 Mpc is the sound scale of the fiducial cosmology used in this study. The parameters which are not well constrained by our galaxy clustering analysis are marginalized over with wide flat priors. Since no priors from other data sets, e.g. cosmic microwave background (CMB), are adopted and no dark energy models are assumed, our results from BOSS CMASS galaxy clustering alone may be combined with other data sets, i.e. CMB, SNe, lensing or other galaxy clustering data to constrain the parameters of a given cosmological model. The uncertainty on the dark energy equation of state parameter, w, from CMB+CMASS is about 8 per cent. The uncertainty on the curvature fraction, Ωk, is 0.3 per cent. We do not find deviation from flat ΛCDM.
Fil: Chuang, Chia-Hsun. Universidad Autónoma de Madrid; España
Fil: Prada, Francisco. Universidad Autónoma de Madrid; España
Fil: Pellejero Ibanez, Marcos. Instituto de Astrofísica de Canarias; España
Fil: Beutler, Florian. Lawrence Berkeley National Lab,; Estados Unidos
Fil: Cuesta, Antonio. Universidad de Barcelona; España
Fil: Eisenstein, Daniel J.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Escoffier, Stephanie. Aix-Marseille Universite,; Francia
Fil: Ho, Shirley. Carnegie Mellon University; Estados Unidos
Fil: Kitaura, Francisco-Shu. Leibniz-Institut fur Astrophysik Potsdam; Alemania
Fil: Kneib, Jean Paul. Aix Marseille Universite,; Francia
Fil: Manera, Marc. University College London,; Reino Unido
Fil: Nuza, Sebastian Ernesto. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Rodriguez Torres, Sergio A.. Universidad Autónoma de Madrid; España
Fil: Ross, Ashley. Ohio State University; Estados Unidos
Fil: Rubiño Martín, J. A.. Instituto de Astrof´ısica de Canarias; España
Fil: Samushia, Lado. Kansas State University; Estados Unidos
Fil: Schlegel, David J.. Lawrence Berkeley National Laboratory; Estados Unidos
Fil: Schneider, Donald P.. State University Of Pennsylvania; Estados Unidos
Fil: Wang, Yuting. National Astronomy Observatories; China
Fil: Weaber, Benjamin A.. University of New York; Estados Unidos
Fil: Zao, Gongbo. National Astronomy Observatories; China
Fil: Brownstein, Joel R.. University of Utah; Estados Unidos
Fil: Dawson, Kyle S.. University of Utah; Estados Unidos
Fil: Maraston, Claudia. University of Portsmouth; Reino Unido
Fil: Olmestead, Matthew D.. King’s College; Estados Unidos
Fil: Thomas, Daniel. University of Portsmouth; Reino Unido
Ciencias Físicas
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