How do galaxy properties affect void statistics?. (arXiv:2009.14751v1 [astro-ph.CO])

How do galaxy properties affect void statistics?. (arXiv:2009.14751v1 [astro-ph.CO])
<a href="http://arxiv.org/find/astro-ph/1/au:+Panchal_R/0/1/0/all/0/1">Rushy R. Panchal</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:+Spergel_D/0/1/0/all/0/1">David N. Spergel</a>

Using a mapping from dark matter halos to galaxy properties based on
hydrodynamical simulations, we explore the impact of galaxy properties on the
void size function and the void-galaxy correlation function. We replicate the
properties of galaxies from Illustris on MassiveNus halos, to perform both
luminosity and star formation rate cuts on MassiveNus halos. We compare the
impact of such cuts on voids properties with respect to cuts on halo mass (as
usually performed on halo catalogs driven from N-body simulations). We find
that void catalogs built from luminosity-selected galaxies and halos are
consistent within errors, while void catalogs built from star formation rate
selected galaxies differ from void catalogs built on halos. We investigate the
reason for this difference. Our work suggests that voids built on galaxy
catalogs (selected through luminosity cut) can be reliably studied by using
halos in dark matter simulations.

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