TY - JOUR
T1 - Constraints on the growth of structure around cosmic voids in eBOSS DR14
AU - Hawken, Adam J.
AU - Aubert, Marie
AU - Pisani, Alice
AU - Cousinou, Marie Claude
AU - Escoffier, Stephanie
AU - Nadathur, Seshadri
AU - Rossi, Graziano
AU - Schneider, Donald P.
N1 - Publisher Copyright:
© 2020 IOP Publishing Ltd and Sissa Medialab.
PY - 2020/6
Y1 - 2020/6
N2 - We present catalogues of cosmic voids identified in the distribution of Luminous Red Galaxies (LRGs) and Quasi Stellar Objects (QSOs) in the fourteenth data release (DR14) of the extended Baryon Oscillation Spectroscopic Survey (eBOSS). We perform a multivariate analysis to assess the level of contamination in these catalogues by spurious Poisson underdensities. We find that the LRG void catalogue is largely free from contamination but that the QSO catalogue may be heavily contaminated. We analyse the multipoles of the void-galaxy cross-correlation function in these catalogues to obtain constraints on the growth rate of structure around voids. We find a value of β(z=0.703)=0.58+0.33-0.28 for the LRG voids and β(z=1.53)=0.15+0.13-0.12 for the QSO voids.
AB - We present catalogues of cosmic voids identified in the distribution of Luminous Red Galaxies (LRGs) and Quasi Stellar Objects (QSOs) in the fourteenth data release (DR14) of the extended Baryon Oscillation Spectroscopic Survey (eBOSS). We perform a multivariate analysis to assess the level of contamination in these catalogues by spurious Poisson underdensities. We find that the LRG void catalogue is largely free from contamination but that the QSO catalogue may be heavily contaminated. We analyse the multipoles of the void-galaxy cross-correlation function in these catalogues to obtain constraints on the growth rate of structure around voids. We find a value of β(z=0.703)=0.58+0.33-0.28 for the LRG voids and β(z=1.53)=0.15+0.13-0.12 for the QSO voids.
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U2 - 10.1088/1475-7516/2020/06/012
DO - 10.1088/1475-7516/2020/06/012
M3 - Article
AN - SCOPUS:85088481930
SN - 1475-7516
VL - 2020
JO - Journal of Cosmology and Astroparticle Physics
JF - Journal of Cosmology and Astroparticle Physics
IS - 6
M1 - 012
ER -