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Title: The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Single-probe measurements from DR12 galaxy clustering – towards an accurate model

Abstract

We analyze the broad-range shape of the monopole and quadrupole correlation functions of the BOSS Data Release 12 (DR12) CMASS and LOWZ galaxy sample to obtain constraints on the Hubble expansion rate H(z), the angular-diameter distance DA(z), the normalised growth rate f(z)σ 8(z), and the physical matter density Ω mh 2. In addition, we adopt wide and flat priors on all model parameters in order to ensure the results are those of a `single-probe' galaxy clustering analysis. We also marginalize over three nuisance terms that account for potential observational systematics affecting the measured monopole. However, such Monte Carlo Markov Chain analysis is computationally expensive for advanced theoretical models, thus we develop a new methodology to speed up our analysis.

Authors:
;  [1];  [2];  [3];  [4];  [4]; ;  [5];  [6];  [7];  [8];  [9];  [7];  [10];  [11];  [12];  [13];  [14];  [10];  [15] more »;  [16];  [17];  [18];  [19];  [20];  [21];  [18];  [22];  [13];  [23] « less
  1. Instituto de Astrofisica de Canarias (IAC), Tenerife (Spain); Univ. de La Laguna (ULL), Tenerife (Spain); Univ. Autonoma de Madrid, Madrid (Spain); Leibniz-Institut fur Astrophysik Potsdam (AIP), Potsdam (Germany)
  2. Univ. Autonoma de Madrid, Madrid (Spain); Campus of International Excellence UAM+CSIC, Madrid (Spain); Univ. de Madrid (UAM), Madrid (Spain)
  3. The Ohio State Univ., Columbus, OH (United States); Univ. of Portsmouth, Portsmouth (United Kingdom)
  4. Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Portsmouth, Portsmouth (United Kingdom)
  5. Instituto de Astrofisica de Canarias (IAC), Tenerife (Spain); Univ. de La Laguna (ULL), Tenerife (Spain)
  6. Univ. Autonoma de Madrid, Madrid (Spain); Instituto de Astrofisica de Andalucia (CSIC), Granada (Spain)
  7. Sorbonne Univ., Paris (France); Univ. Pierre et Marie Curie, Paris (France)
  8. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of Portsmouth, Portsmouth (United Kingdom)
  9. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States)
  10. Univ.-Sternwarte Munchen, Munich (Germany); Max-Planck-Institut fur extraterrestrische Physik, Garching (Germany)
  11. Carnegie Mellon Univ., Pittsburgh, PA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
  12. Leibniz-Institut fur Astrophysik Potsdam (AIP), Potsdam (Germany); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
  13. Univ. of Portsmouth, Portsmouth (United Kingdom)
  14. Sejong Univ., Seoul (Korea)
  15. Kansas State Univ., Manhattan, KS (United States); Brookhaven National Lab. (BNL), Upton, NY (United States); Univ. of Portsmouth, Portsmouth (United Kingdom)
  16. Max-Planck-Institut fur extraterrestrische Physik, Garching (Germany)
  17. Carnegie Mellon Univ., Pittsburgh, PA (United States)
  18. Brookhaven National Lab. (BNL), Upton, NY (United States)
  19. New York Univ. (NYU), NY (United States)
  20. Univ. of St. Andrews, St. Andrews (United Kingdom)
  21. Univ. Nacional Autonoma de Mexico (Mexico)
  22. Univ. of Utah, Salt Lake City, UT (United States)
  23. King's College, Wilkes Barre, PA (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1324269
Report Number(s):
BNL-112529-2016-JA
Journal ID: ISSN 0035-8711; KA2301020
Grant/Contract Number:
SC00112704; AC02-05CH11231
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Monthly Notices of the Royal Astronomical Society
Additional Journal Information:
Journal Volume: 461; Journal Issue: 4; Journal ID: ISSN 0035-8711
Publisher:
Royal Astronomical Society
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; cosmology: observations; distance scale; large-scale structure of Universe; cosmological parameters

Citation Formats

Chia -Hsun Chuang, Pellejero-Ibanez, Marco, Rodriguez-Torres, Sergio, Ross, Ashley J., Zhao, Gong Bo, Wang, Yuting, Antonio J. Cuesta, Rubino-Martin, J. A., Prada, Francisco, Alam, Shadab, Beutler, Florian, Eisenstein, Daniel J., Gil-Martin, Hector, Grieb, Jan Kiklas, Ho, Shirley, Kitaura, Francisco -Shu, Percival, Will J., Rossi, Graziano, Salazar-Albornoz, Salvador, Samushia, Lado, Sanchez, Ariel G., Satpathy, Siddharth, Slosar, Anze, Tinker, Jeremy L., Tojeiro, Rita, Vargas-Magana, Mariana, Vazquez, Jose A., Brownstein, Joel R., Nichol, Robert C., and Olmstead, Matthew D.. The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Single-probe measurements from DR12 galaxy clustering – towards an accurate model. United States: N. p., 2016. Web. doi:10.1093/mnras/stw1535.
Chia -Hsun Chuang, Pellejero-Ibanez, Marco, Rodriguez-Torres, Sergio, Ross, Ashley J., Zhao, Gong Bo, Wang, Yuting, Antonio J. Cuesta, Rubino-Martin, J. A., Prada, Francisco, Alam, Shadab, Beutler, Florian, Eisenstein, Daniel J., Gil-Martin, Hector, Grieb, Jan Kiklas, Ho, Shirley, Kitaura, Francisco -Shu, Percival, Will J., Rossi, Graziano, Salazar-Albornoz, Salvador, Samushia, Lado, Sanchez, Ariel G., Satpathy, Siddharth, Slosar, Anze, Tinker, Jeremy L., Tojeiro, Rita, Vargas-Magana, Mariana, Vazquez, Jose A., Brownstein, Joel R., Nichol, Robert C., & Olmstead, Matthew D.. The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Single-probe measurements from DR12 galaxy clustering – towards an accurate model. United States. doi:10.1093/mnras/stw1535.
Chia -Hsun Chuang, Pellejero-Ibanez, Marco, Rodriguez-Torres, Sergio, Ross, Ashley J., Zhao, Gong Bo, Wang, Yuting, Antonio J. Cuesta, Rubino-Martin, J. A., Prada, Francisco, Alam, Shadab, Beutler, Florian, Eisenstein, Daniel J., Gil-Martin, Hector, Grieb, Jan Kiklas, Ho, Shirley, Kitaura, Francisco -Shu, Percival, Will J., Rossi, Graziano, Salazar-Albornoz, Salvador, Samushia, Lado, Sanchez, Ariel G., Satpathy, Siddharth, Slosar, Anze, Tinker, Jeremy L., Tojeiro, Rita, Vargas-Magana, Mariana, Vazquez, Jose A., Brownstein, Joel R., Nichol, Robert C., and Olmstead, Matthew D.. 2016. "The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Single-probe measurements from DR12 galaxy clustering – towards an accurate model". United States. doi:10.1093/mnras/stw1535. https://www.osti.gov/servlets/purl/1324269.
@article{osti_1324269,
title = {The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Single-probe measurements from DR12 galaxy clustering – towards an accurate model},
author = {Chia -Hsun Chuang and Pellejero-Ibanez, Marco and Rodriguez-Torres, Sergio and Ross, Ashley J. and Zhao, Gong Bo and Wang, Yuting and Antonio J. Cuesta and Rubino-Martin, J. A. and Prada, Francisco and Alam, Shadab and Beutler, Florian and Eisenstein, Daniel J. and Gil-Martin, Hector and Grieb, Jan Kiklas and Ho, Shirley and Kitaura, Francisco -Shu and Percival, Will J. and Rossi, Graziano and Salazar-Albornoz, Salvador and Samushia, Lado and Sanchez, Ariel G. and Satpathy, Siddharth and Slosar, Anze and Tinker, Jeremy L. and Tojeiro, Rita and Vargas-Magana, Mariana and Vazquez, Jose A. and Brownstein, Joel R. and Nichol, Robert C. and Olmstead, Matthew D.},
abstractNote = {We analyze the broad-range shape of the monopole and quadrupole correlation functions of the BOSS Data Release 12 (DR12) CMASS and LOWZ galaxy sample to obtain constraints on the Hubble expansion rate H(z), the angular-diameter distance DA(z), the normalised growth rate f(z)σ8(z), and the physical matter density Ωmh2. In addition, we adopt wide and flat priors on all model parameters in order to ensure the results are those of a `single-probe' galaxy clustering analysis. We also marginalize over three nuisance terms that account for potential observational systematics affecting the measured monopole. However, such Monte Carlo Markov Chain analysis is computationally expensive for advanced theoretical models, thus we develop a new methodology to speed up our analysis.},
doi = {10.1093/mnras/stw1535},
journal = {Monthly Notices of the Royal Astronomical Society},
number = 4,
volume = 461,
place = {United States},
year = 2016,
month = 6
}

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Cited by: 16works
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  • Here, we develop a new methodology called double-probe analysis with the aim of minimizing informative priors in the estimation of cosmological parameters. We extract the dark-energy-model-independent cosmological constraints from the joint data sets of Baryon Oscillation Spectroscopic Survey (BOSS) galaxy sample and Planck cosmic microwave background (CMB) measurement. We measure the mean values and covariance matrix of {R, l a, Ω bh 2, n s, log(A s), Ω k, H(z), D A(z), f(z)σ 8(z)}, which give an efficient summary of Planck data and 2-point statistics from BOSS galaxy sample, where R = √Ω mH 2 0, and l a =more » πr(z *)/r s(z *), z * is the redshift at the last scattering surface, and r(z *) and r s(z *) denote our comoving distance to z * and sound horizon at z * respectively. The advantage of this method is that we do not need to put informative priors on the cosmological parameters that galaxy clustering is not able to constrain well, i.e. Ω bh 2 and n s. Using our double-probe results, we obtain Ω m = 0.304 ± 0.009, H 0 = 68.2 ± 0.7, and σ 8 = 0.806 ± 0.014 assuming ΛCDM; and Ω k = 0.002 ± 0.003 and w = –1.00 ± 0.07 assuming owCDM. The results show no tension with the flat ΛCDM cosmological paradigm. By comparing with the full-likelihood analyses with fixed dark energy models, we demonstrate that the double-probe method provides robust cosmological parameter constraints which can be conveniently used to study dark energy models. We extend our study to measure the sum of neutrino mass and obtain Σm ν < 0.10/0.22 (68%/95%) assuming ΛCDM and Σm ν < 0.26/0.52 (68%/95%) assuming wCDM. This paper is part of a set that analyses the final galaxy clustering dataset from BOSS.« less
  • Here 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 deg 2 and volume of 18.7 Gpc 3, 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 parameter H from the baryon acoustic oscillation (BAO) method, in combination with a cosmic microwave background prior on the sound horizon scale, after applying reconstruction to reducemore » 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 w = -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 km s -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 ± 1.2km s -1 Mpc -1. Assuming flat ΛCDM, we find Ωm = 0.310 ± 0.005 and H0 = 67.6 ± 0.5 km s -1 Mpc -1, and we find a 95 per cent upper limit of 0.16 eV c -2 on the neutrino mass sum.« less
  • © 2017 The Authors Published by Oxford University Press. 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 deg 2 and volume of 18.7 Gpc 3 , divided into three partially overlapping redshift slices centred at effective redshifts 0.38, 0.51 and 0.61. We measure the angular diameter distance D M and Hubble parameterHfrom the baryon acoustic oscillation (BAO) method, in combinationwith a cosmic microwave background prior on the soundmore » 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 D M H from the Alcock-Paczynski (AP) effect and the growth of structure, quantified by fσ 8 (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 D M 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 fσ 8 , at 6 per cent precision, are similarly consistent with this model. When combined with supernova Ia data, we find H 0 = 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 H 0 = 67.8 ± 1.2 kms -1 Mpc -1 . Assuming flat ΛCDM, we find ωm = 0.310 ± 0.005 and H 0 = 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.« less
  • 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 D A (z), the normalized growth rate f(z)σ 8 (z), and the physical matter density Ω m h 2 .Wemore » 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 (D A (0.59)r s,fid /r s , H(0.59)r s /r s,fid , f(0.59)σ 8 (0.59), Ω m h 2 ) = (1427 ± 26 Mpc, 97.3 ± 3.3 kms -1 Mpc -1 , 0.488 ± 0.060, 0.135 ± 0.016), where r s is the comoving sound horizon at the drag epoch and r s,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, Ω k , is 0.3 per cent. We do not find deviation from flat ΛCDM.« less
  • Here, we present an anisotropic analysis of the baryon acoustic oscillation (BAO) scale in the twelfth and final data release of the Baryon Oscillation Spectroscopic Survey (BOSS). We independently analyse the LOWZ and CMASS galaxy samples: the LOWZ sample contains 361 762 galaxies with an effective redshift of zLOWZ = 0.32; the CMASS sample consists of 777 202 galaxies with an effective redshift of zCMASS = 0.57. We extract the BAO peak position from the monopole power-spectrum moment, α0, and from the μ 2 moment, α2, where μ is the cosine of the angle to the line of sight. Themore » μ 2-moment provides equivalent information to that available in the quadrupole but is simpler to analyse. After applying a reconstruction algorithm to reduce the BAO suppression by bulk motions, we measure the BAO peak position in the monopole and μ 2-moment, which are related to radial and angular shifts in scale. We report H(zLOWZ)r s(zd) = (11.60 ± 0.60) × 10 3 km s -1 and D A(zLOWZ)/r s(zd) = 6.66 ± 0.16 with a cross-correlation coefficient of rHD A = 0.41, for the LOWZ sample; and H(zCMASS)r s(zd) = (14.56 ± 0.37) × 10 3 km s -1 and D A(zCMASS)/r s(z d) = 9.42 ± 0.13 with a cross-correlation coefficient of rHD A = 0.47, for the CMASS sample.« less