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A Cosmic Void Catalog of SDSS DR12 BOSS Galaxies | | Qingqing Mao
; Andreas A. Berlind
; Robert J. Scherrer
; Roman Scoccimarro
; Jeremy L. Tinker
; Cameron K. McBride
; Mark C. Neyrinck
; Donald P. Schneider
; Kaike Pan
; Dmitry Bizyaev
; Elena Malanushenko
; Viktor Malanushenko
; | | Date: |
Mon, 8 Feb 2016 21:00:11 GMT (1887kb,D) | | Abstract: | We present a cosmic void catalog using the large-scale structure galaxy
catalog from the Baryon Oscillation Spectroscopic Survey (BOSS). This galaxy
catalog is part of the Sloan Digital Sky Survey (SDSS) Data Release 12 and is
the final catalog of SDSS-III. We take into account the survey boundaries,
masks, and angular and radial selection functions, and apply the ZOBOV void
finding algorithm to the galaxy catalog. After making quality cuts to ensure
that the voids represent real underdense regions, we identify 1228 voids with
effective radii spanning the range 20-100Mpc/h and with central densities that
are, on average, 30% of the mean sample density. We discuss the basic
statistics of voids, such as their size and redshift distributions, and measure
the radial density profile of the voids via a stacking technique. In addition,
we construct mock void catalogs from 1000 mock galaxy catalogs, and find that
the properties of BOSS voids are in good agreement with those in the mock
catalogs. We compare the stellar mass distribution of galaxies living inside
and outside of the voids, and find no significant difference. These BOSS and
mock void catalogs are useful for a number of cosmological and galaxy
environment studies. | | Source: | arXiv, 1602.2771 | | Services: | Forum | Review | PDF | Favorites | |
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