Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 516, Issue 3, Pages 4307-4323Publisher
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stac2475
Keywords
cosmology: cosmological parameters; cosmology: observations; cosmology: dark energy; cosmology: large-scale structure of Universe
Categories
Funding
- Natural Sciences and Engineering Research Council of Canada (NSERC) [547744]
- Cette recherche a ete financee par le Conseil de recherches en sciences naturelles et en genie du Canada (CRSNG) [547744]
- STFC Ernest Rutherford Fellowship [ST/T005009/2]
- Government of Canada through the Department of Innovation, Science and Economic Development Canada
- Province of Ontario through the Ministry of Colleges and Universities
- Compute Ontario
- Compute Canada
- Alfred P. Sloan Foundation
- U.S. Department of Energy Office of Science
- Center for High Performance Computing at the University of Utah
- SDSS Collaboration
- Brazilian Participation Group
- Carnegie Institution for Science
- Carnegie Mellon University
- Center for Astrophysics | Harvard Smithsonian
- Chilean Participation Group
- French Participation Group
- Instituto de Astrofisica de Canarias
- Johns Hopkins University
- Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo
- Korean Participation Group
- Lawrence Berkeley National Laboratory
- Leibniz Institut fur Astrophysik Potsdam (AIP)
- Max-Planck-Institut fur Astronomie (MPIA Heidelberg)
- Max-Planck-Institut fur Astrophysik (MPA Garching)
- Max-Planck-Institut fur Extraterrestrische Physik (MPE)
- National Astronomical Observatories of China
- New Mexico State University
- New York University
- University of Notre Dame
- Observatario Nacional/MCTI
- Ohio State University
- Pennsylvania State University
- Shanghai Astronomical Observatory
- United Kingdom Participation Group
- Universidad Nacional Autonoma de Mexico
- University of Arizona
- University of Colorado Boulder
- University of Oxford
- University of Portsmouth
- University of Utah
- University of Virginia
- University of Washington
- University of Wisconsin
- Vanderbilt University
- Yale University
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This study presents measurements of the anisotropic cross-correlation of galaxies and cosmic voids in SDSS data, achieving higher precision than traditional analyses and confirming expectations of the Λ cold dark matter model. The results on the growth rate of structure and comoving angular diameter distance provide valuable insights for modern observational cosmology and complement other cosmological probes.
We present measurements of the anisotropic cross-correlation of galaxies and cosmic voids in data from the Sloan Digital Sky Survey (SDSS) Main Galaxy Sample, Baryon Oscillation Spectroscopic Survey (BOSS), and extended BOSS luminous red galaxy catalogues from SDSS Data Releases 7, 12, and 16, covering the redshift range 0.07 < z < 1.0. As in our previous work analysing voids in subsets of these data, we use a reconstruction method applied to the galaxy data before void finding in order to remove selection biases when constructing the void samples. We report results of a joint fit to the multipole moments of the measured cross-correlation for the growth rate of structure, f sigma(8)(z), and the ratio D-M(z)/D-H(z) of the comoving angular diameter distance to the Hubble distance, in six redshift bins. For D-M/D-H, we are able to achieve a significantly higher precision than that obtained from analyses of the baryon acoustic oscillations and galaxy clustering in the same data sets. Our growth rate measurements are of lower precision but still comparable with galaxy clustering results. For both quantities, the results agree well with the expectations for a Lambda cold dark matter model. Assuming a flat Universe, our results correspond to a measurement of the matter density parameter Omega(m)=0.337(-0.029)(+0.026). For more general models, the degeneracy directions obtained are consistent with and complementary to those from other cosmological probes. These results consolidate void-galaxy cross-correlation measurements as a pillar of modern observational cosmology.
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