TY - JOUR
T1 - The Completed SDSS-IV Extended Baryon Oscillation Spectroscopic Survey
T2 - growth rate of structure measurement from cosmic voids
AU - Aubert, Marie
AU - Cousinou, Marie-Claude
AU - Escoffier, Stéphanie
AU - Hawken, Adam J.
AU - Nadathur, Seshadri
AU - Alam, Shadab
AU - Bautista, Julian
AU - Burtin, Etienne
AU - Mattia, Arnaud de
AU - Gil-Marín, Héctor
AU - Hou, Jiamin
AU - Jullo, Eric
AU - Neveux, Richard
AU - Rossi, Graziano
AU - Smith, Alex
AU - Tamone, Amélie
AU - Magaña, Mariana Vargas
N1 - 17 pages, 8 figures
AAM online 26/03/2022 - not VoR
PY - 2022/6/1
Y1 - 2022/6/1
N2 - We present a void clustering analysis in configuration-space using the completed Sloan Digital Sky Survey IV (SDSS-IV) extended Baryon Oscillation Spectroscopic Survey (eBOSS) DR16 samples. These samples consist of Luminous Red Galaxies (LRG) combined with the high redshift tail of the SDSS-III Baryon Oscillation Spectroscopic Survey (BOSS) DR12 CMASS galaxies (called as LRG+CMASS sample), Emission Line Galaxies (ELG) and quasars (QSO). We build void catalogues from the three eBOSS DR16 samples using a ZOBOV-based algorithm, providing 2,814 voids, 1,801 voids and 4,347 voids in the LRG+CMASS, ELG and QSO samples, respectively, spanning the redshift range 0.6 < z < 2.2. We measure the redshift space distortions (RSD) around voids using the anisotropic void-galaxy cross-correlation function and we extract the distortion parameter β. We test the methodology on realistic simulations before applying it to the data, and we investigate all our systematic errors on these mocks. We find βLRG(z = 0.74) = 0.415 ± 0.087, βELG(z = 0.85) = 0.665 ± 0.125 and βQSO(z = 1.48) = 0.313 ± 0.134, for the LRG+CMASS, ELG and QSO sample, respectively. The quoted errors include systematic and statistical contributions. In order to convert our measurements in terms of the growth rate fσ8, we use consensus values of linear bias from the eBOSS DR16 companion papers, resulting in the following constraints: ∫σ8(z = 0.74) = 0.50 ± 0.11, ƒσ8(z = 0.85) = 0.52 ± 0.10 and ƒσ8(z = 1.48) = 0.30 ± 0.13. Our measurements are consistent with other measurements from eBOSS DR16 using conventional clustering techniques.
AB - We present a void clustering analysis in configuration-space using the completed Sloan Digital Sky Survey IV (SDSS-IV) extended Baryon Oscillation Spectroscopic Survey (eBOSS) DR16 samples. These samples consist of Luminous Red Galaxies (LRG) combined with the high redshift tail of the SDSS-III Baryon Oscillation Spectroscopic Survey (BOSS) DR12 CMASS galaxies (called as LRG+CMASS sample), Emission Line Galaxies (ELG) and quasars (QSO). We build void catalogues from the three eBOSS DR16 samples using a ZOBOV-based algorithm, providing 2,814 voids, 1,801 voids and 4,347 voids in the LRG+CMASS, ELG and QSO samples, respectively, spanning the redshift range 0.6 < z < 2.2. We measure the redshift space distortions (RSD) around voids using the anisotropic void-galaxy cross-correlation function and we extract the distortion parameter β. We test the methodology on realistic simulations before applying it to the data, and we investigate all our systematic errors on these mocks. We find βLRG(z = 0.74) = 0.415 ± 0.087, βELG(z = 0.85) = 0.665 ± 0.125 and βQSO(z = 1.48) = 0.313 ± 0.134, for the LRG+CMASS, ELG and QSO sample, respectively. The quoted errors include systematic and statistical contributions. In order to convert our measurements in terms of the growth rate fσ8, we use consensus values of linear bias from the eBOSS DR16 companion papers, resulting in the following constraints: ∫σ8(z = 0.74) = 0.50 ± 0.11, ƒσ8(z = 0.85) = 0.52 ± 0.10 and ƒσ8(z = 1.48) = 0.30 ± 0.13. Our measurements are consistent with other measurements from eBOSS DR16 using conventional clustering techniques.
KW - astro-ph.CO
KW - cosmology
KW - large-scale structure of the Universe
KW - dark energy
U2 - 10.1093/mnras/stac828
DO - 10.1093/mnras/stac828
M3 - Article
SN - 0035-8711
VL - 513
SP - 186
EP - 203
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 1
ER -