TY - JOUR
T1 - The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey
T2 - Cosmological analysis of the DR12 galaxy sample
AU - Alam, Shadab
AU - Ata, Metin
AU - Bailey, Stephen
AU - Beutler, Florian
AU - Bizyaev, Dmitry
AU - Blazek, Jonathan A.
AU - Bolton, Adam S.
AU - Brownstein, Joel R.
AU - Burden, Angela
AU - Chuang, Chia Hsun
AU - Comparat, Johan
AU - Cuesta, Antonio J.
AU - Dawson, Kyle S.
AU - Eisenstein, Daniel J.
AU - Escoffier, Stephanie
AU - Gil-Maŕin, Hector
AU - Grieb, Jan Niklas
AU - Hand, Nick
AU - Ho, Shirley
AU - Kinemuchi, Karen
AU - Kirkby, David
AU - Kitaura, Francisco
AU - Malanushenko, Elena
AU - Malanushenko, Viktor
AU - Maraston, Claudia
AU - McBride, Cameron K.
AU - Nichol, Robert C.
AU - Olmstead, Matthew D.
AU - Oravetz, Daniel
AU - Padmanabhan, Nikhil
AU - Palanque-Delabrouille, Nathalie
AU - Pan, Kaike
AU - Pellejero-Ibanez, Marcos
AU - Percival, Will J.
AU - Petitjean, Patrick
AU - Prada, Francisco
AU - Price-Whelan, Adrian M.
AU - Reid, Beth A.
AU - Rodŕiguez-Torres, Sergio A.
AU - Roe, Natalie A.
AU - Ross, Ashley J.
AU - Ross, Nicholas P.
AU - Rossi, Graziano
AU - Rubiño-Martin, Jose Alberto
AU - Saito, Shun
AU - Salazar-Albornoz, Salvador
AU - Samushia, Lado
AU - Śanchez, Ariel G.
AU - Satpathy, Siddharth
AU - Schlegel, David J.
AU - Schneider, Donald P.
AU - Sćoccola, Claudia G.
AU - Seo, Hee Jong
AU - Sheldon, Erin S.
AU - Simmons, Audrey
AU - Slosar, Anze
AU - Strauss, Michael A.
AU - Swanson, Molly E.C.
AU - Thomas, Daniel
AU - Tinker, Jeremy L.
AU - Tojeiro, Rita
AU - Magaña, Mariana Vargas
AU - Vazquez, Jose Alberto
AU - Verde, Licia
AU - Wake, David A.
AU - Wang, Yuting
AU - Weinberg, David H.
AU - White, Martin
AU - Wood-Vasey, W. Michael
AU - Ỳeche, Christophe
AU - Zehavi, Idit
AU - Zhai, Zhongxu
AU - Zhao, Gong Bo
N1 - Publisher Copyright:
© 2017 The Authors Published by Oxford University Press.
PY - 2017/9/21
Y1 - 2017/9/21
N2 - We present cosmological results from the final galaxy clustering data set of the Baryon Oscillation Spectroscopic Survey, part of the Sloan Digital Sky Survey III. Our combined galaxy sample comprises 1.2 million massive galaxies over an effective area of 9329 deg2 and volume of 18.7 Gpc3, divided into three partially overlapping redshift slices centred at effective redshifts 0.38, 0.51 and 0.61. We measure the angular diameter distance DM and Hubble parameterHfrom the baryon acoustic oscillation (BAO) method, in combinationwith a cosmic microwave background prior on the sound horizon scale, after applying reconstruction to reduce non-linear effects on the BAO feature. Using the anisotropic clustering of the pre-reconstruction density field, we measure the product DMH from the Alcock-Paczynski (AP) effect and the growth of structure, quantified by fσ8(z), from redshift-space distortions (RSD). We combine individual measurements presented in seven companion papers into a set of consensus values and likelihoods, obtaining constraints that are tighter and more robust than those from any one method; in particular, the AP measurement from sub-BAO scales sharpens constraints from post-reconstruction BAOs by breaking degeneracy between DM and H. Combined with Planck 2016 cosmic microwave background measurements, our distance scale measurements simultaneously imply curvature ωK = 0.0003 ± 0.0026 and a dark energy equation-of-state parameter ω =-1.01 ± 0.06, in strong affirmation of the spatially flat cold dark matter (CDM) model with a cosmological constant (ΛCDM). Our RSD measurements of fσ8, at 6 per cent precision, are similarly consistent with this model. When combined with supernova Ia data, we find H0 = 67.3 ± 1.0 kms-1 Mpc-1 even for our most general dark energy model, in tension with some direct measurements. Adding extra relativistic species as a degree of freedom loosens the constraint only slightly, to H0 = 67.8 ± 1.2 kms-1 Mpc-1. Assuming flat ΛCDM, we find ωm = 0.310 ± 0.005 and H0 = 67.6 ± 0.5 kms-1 Mpc-1, and we find a 95 per cent upper limit of 0.16 eV c-2 on the neutrino mass sum.
AB - We present cosmological results from the final galaxy clustering data set of the Baryon Oscillation Spectroscopic Survey, part of the Sloan Digital Sky Survey III. Our combined galaxy sample comprises 1.2 million massive galaxies over an effective area of 9329 deg2 and volume of 18.7 Gpc3, divided into three partially overlapping redshift slices centred at effective redshifts 0.38, 0.51 and 0.61. We measure the angular diameter distance DM and Hubble parameterHfrom the baryon acoustic oscillation (BAO) method, in combinationwith a cosmic microwave background prior on the sound horizon scale, after applying reconstruction to reduce non-linear effects on the BAO feature. Using the anisotropic clustering of the pre-reconstruction density field, we measure the product DMH from the Alcock-Paczynski (AP) effect and the growth of structure, quantified by fσ8(z), from redshift-space distortions (RSD). We combine individual measurements presented in seven companion papers into a set of consensus values and likelihoods, obtaining constraints that are tighter and more robust than those from any one method; in particular, the AP measurement from sub-BAO scales sharpens constraints from post-reconstruction BAOs by breaking degeneracy between DM and H. Combined with Planck 2016 cosmic microwave background measurements, our distance scale measurements simultaneously imply curvature ωK = 0.0003 ± 0.0026 and a dark energy equation-of-state parameter ω =-1.01 ± 0.06, in strong affirmation of the spatially flat cold dark matter (CDM) model with a cosmological constant (ΛCDM). Our RSD measurements of fσ8, at 6 per cent precision, are similarly consistent with this model. When combined with supernova Ia data, we find H0 = 67.3 ± 1.0 kms-1 Mpc-1 even for our most general dark energy model, in tension with some direct measurements. Adding extra relativistic species as a degree of freedom loosens the constraint only slightly, to H0 = 67.8 ± 1.2 kms-1 Mpc-1. Assuming flat ΛCDM, we find ωm = 0.310 ± 0.005 and H0 = 67.6 ± 0.5 kms-1 Mpc-1, and we find a 95 per cent upper limit of 0.16 eV c-2 on the neutrino mass sum.
KW - Cosmology: observations
KW - Large-scale structure of universe
KW - distance scale
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U2 - 10.1093/mnras/stx721
DO - 10.1093/mnras/stx721
M3 - Article
AN - SCOPUS:85023742631
SN - 0035-8711
VL - 470
SP - 2617
EP - 2652
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 3
ER -