U.S. Department of Energy Office of Scientific and Technical Information
The completed SDSS-IV extended baryon oscillation spectroscopic survey: geometry and growth from the anisotropic void–galaxy correlation function in the luminous red galaxy sample
Journal Article·· Monthly Notices of the Royal Astronomical Society
Institute of Cosmology and Gravitation, University of Portsmouth, Burnaby Road, Portsmouth PO1 3FX, UK
Waterloo Centre for Astrophysics, University of Waterloo, 200 University Ave W, Waterloo ON N2L 3G1, Canada, Department of Physics and Astronomy, University of Waterloo, 200 University Ave W, Waterloo ON N2L 3G1, Canada
Waterloo Centre for Astrophysics, University of Waterloo, 200 University Ave W, Waterloo ON N2L 3G1, Canada, Department of Physics and Astronomy, University of Waterloo, 200 University Ave W, Waterloo ON N2L 3G1, Canada, Perimeter Institute for Theoretical Physics, 31 Caroline St. North, Waterloo ON N2L 2Y5, Canada
Aix Marseille University, CNRS/IN2P3, CPPM, Marseille, F-902 13288, France
Department of Physics and Astronomy, University of Utah, 115 S 1400 E, Salt Lake City, UT 84112, USA
Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Av. Universidad s/n, 62210 Cuernavaca, Mor., Mexico
Institut de Ciencies del Cosmos, Universitat de Barcelona, ICCUB, Martí i Franquès 1, E-08028 Barcelona, Spain, Institut d’Estudis Espacials de Catalunya (IEEC), E-08034 Barcelona, Spain
IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio, OH 43210, USA
Department of Physics and Astronomy, Sejong University, Seoul 143-747, Korea
Instituto de Física, Universidad Nacional Autónoma de México, Apdo. Postal 20-364 Ciudad de México, México
Department of Astronomy and Astrophysics, The Pennsylvania State University, University Park, PA 16802, USA, Institute for Gravitation and the Cosmos, The Pennsylvania State University, University Park, PA 16802, USA
We present an analysis of the anisotropic redshift-space void–galaxy correlation in configuration space using the Sloan Digital Sky Survey extended Baryon Oscillation Spectroscopic Survey (eBOSS) Data Release 16 luminous red galaxy (LRG) sample. This sample consists of LRGs between redshifts 0.6 and 1.0, combined with the high redshift z > 0.6 tail of the Baryon Oscillation Spectroscopic Survey Data Release 12 CMASS sample. We use a reconstruction method to undo redshift-space distortion (RSD) effects from the galaxy field before applying a watershed void-finding algorithm to remove bias from the void selection. We then perform a joint fit to the multipole moments of the correlation function for the growth rate fσ8 and the geometrical distance ratio DM/DH, finding $$f\sigma _8(z_\rm {eff})=0.356\pm 0.079$$ and $$D_M/D_H(z_\rm {eff})=0.868\pm 0.017$$ at the effective redshift $$z_\rm {eff}=0.69$$ of the sample. The posterior parameter degeneracies are orthogonal to those from galaxy clustering analyses applied to the same data, and the constraint achieved on DM/DH is significantly tighter. In combination with the consensus galaxy BAO and full-shape analyses of the same sample, we obtain fσ8 = 0.447 ± 0.039, DM/rd = 17.48 ± 0.23, and DH/rd = 20.10 ± 0.34. These values are in good agreement with the ΛCDM model predictions and represent reductions in the uncertainties of $$13{{\ \rm per\ cent}}$$, $$23{{\ \rm per\ cent}}$$, and $$28{{\ \rm per\ cent}}$$, respectively, compared to the combined results from galaxy clustering, or an overall reduction of 55 per cent in the allowed volume of parameter space.
Nadathur, Seshadri, et al. "The completed SDSS-IV extended baryon oscillation spectroscopic survey: geometry and growth from the anisotropic void–galaxy correlation function in the luminous red galaxy sample." Monthly Notices of the Royal Astronomical Society, vol. 499, no. 3, Oct. 2020. https://doi.org/10.1093/mnras/staa3074
Nadathur, Seshadri, Woodfinden, Alex, Percival, Will J., Aubert, Marie, Bautista, Julian, Dawson, Kyle, Escoffier, Stéphanie, Fromenteau, Sebastien, Gil-Marín, Héctor, Rich, James, Ross, Ashley J., Rossi, Graziano, Magaña, Mariana Vargas, Brownstein, Joel R., & Schneider, Donald P. (2020). The completed SDSS-IV extended baryon oscillation spectroscopic survey: geometry and growth from the anisotropic void–galaxy correlation function in the luminous red galaxy sample. Monthly Notices of the Royal Astronomical Society, 499(3). https://doi.org/10.1093/mnras/staa3074
Nadathur, Seshadri, Woodfinden, Alex, Percival, Will J., et al., "The completed SDSS-IV extended baryon oscillation spectroscopic survey: geometry and growth from the anisotropic void–galaxy correlation function in the luminous red galaxy sample," Monthly Notices of the Royal Astronomical Society 499, no. 3 (2020), https://doi.org/10.1093/mnras/staa3074
@article{osti_1763846,
author = {Nadathur, Seshadri and Woodfinden, Alex and Percival, Will J. and Aubert, Marie and Bautista, Julian and Dawson, Kyle and Escoffier, Stéphanie and Fromenteau, Sebastien and Gil-Marín, Héctor and Rich, James and others},
title = {The completed SDSS-IV extended baryon oscillation spectroscopic survey: geometry and growth from the anisotropic void–galaxy correlation function in the luminous red galaxy sample},
annote = {ABSTRACT We present an analysis of the anisotropic redshift-space void–galaxy correlation in configuration space using the Sloan Digital Sky Survey extended Baryon Oscillation Spectroscopic Survey (eBOSS) Data Release 16 luminous red galaxy (LRG) sample. This sample consists of LRGs between redshifts 0.6 and 1.0, combined with the high redshift z > 0.6 tail of the Baryon Oscillation Spectroscopic Survey Data Release 12 CMASS sample. We use a reconstruction method to undo redshift-space distortion (RSD) effects from the galaxy field before applying a watershed void-finding algorithm to remove bias from the void selection. We then perform a joint fit to the multipole moments of the correlation function for the growth rate fσ8 and the geometrical distance ratio DM/DH, finding $f\sigma _8(z_\rm {eff})=0.356\pm 0.079$ and $D_M/D_H(z_\rm {eff})=0.868\pm 0.017$ at the effective redshift $z_\rm {eff}=0.69$ of the sample. The posterior parameter degeneracies are orthogonal to those from galaxy clustering analyses applied to the same data, and the constraint achieved on DM/DH is significantly tighter. In combination with the consensus galaxy BAO and full-shape analyses of the same sample, we obtain fσ8 = 0.447 ± 0.039, DM/rd = 17.48 ± 0.23, and DH/rd = 20.10 ± 0.34. These values are in good agreement with the ΛCDM model predictions and represent reductions in the uncertainties of $13{{\ \rm per\ cent}}$, $23{{\ \rm per\ cent}}$, and $28{{\ \rm per\ cent}}$, respectively, compared to the combined results from galaxy clustering, or an overall reduction of 55 per cent in the allowed volume of parameter space.},
doi = {10.1093/mnras/staa3074},
url = {https://www.osti.gov/biblio/1763846},
journal = {Monthly Notices of the Royal Astronomical Society},
issn = {ISSN 0035-8711},
number = {3},
volume = {499},
place = {United Kingdom},
publisher = {Oxford University Press},
year = {2020},
month = {10}}
Monthly Notices of the Royal Astronomical Society, Journal Name: Monthly Notices of the Royal Astronomical Society Journal Issue: 3 Vol. 499; ISSN 0035-8711