Constraints on the growth of structure around cosmic voids in eBOSS DR14. (arXiv:1909.04394v1 [astro-ph.CO])

Constraints on the growth of structure around cosmic voids in eBOSS DR14. (arXiv:1909.04394v1 [astro-ph.CO])
<a href="http://arxiv.org/find/astro-ph/1/au:+Hawken_A/0/1/0/all/0/1">Adam J. Hawken</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Aubert_M/0/1/0/all/0/1">Marie Aubert</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Pisani_A/0/1/0/all/0/1">Alice Pisani</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Cousinou_M/0/1/0/all/0/1">Marie-Claude Cousinou</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Escoffier_S/0/1/0/all/0/1">Stephanie Escoffier</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Nadathur_S/0/1/0/all/0/1">Seshadri Nadathur</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Rossi_G/0/1/0/all/0/1">Graziano Rossi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Schneider_D/0/1/0/all/0/1">Donald P. Schneider</a>

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
$beta(z=0.703)=0.58^{+0.33}_{-0.28}$ for the LRG voids and
$beta(z=1.53)=0.15^{+0.13}_{-0.12}$ for the QSO voids.

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
$beta(z=0.703)=0.58^{+0.33}_{-0.28}$ for the LRG voids and
$beta(z=1.53)=0.15^{+0.13}_{-0.12}$ for the QSO voids.

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