J/ApJ/835/161 A cosmic void catalog of SDSS DR12 BOSS galaxies (Mao+, 2017)
A cosmic void catalog of SDSS DR12 BOSS galaxies.
Mao Q., Berlind A.A., Scherrer R.J., Neyrinck M.C., Scoccimarro R.,
Tinker J.L., McBride C.K., Schneider D.P., Pan K., Bizyaev D.,
Malanushenko E., Malanushenko V.
<Astrophys. J., 835, 161-161 (2017)>
=2017ApJ...835..161M 2017ApJ...835..161M (SIMBAD/NED BibCode)
ADC_Keywords: Redshifts ; Surveys ; Galaxies, optical
Keywords: cosmological parameters; cosmology: observations
large-scale structure of universe; methods: statistical; surveys
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 (Neyrinck 2008MNRAS.386.2101N 2008MNRAS.386.2101N)
void finding algorithm to the Galaxy catalog. We identify a total of
10643 voids. After making quality cuts to ensure that the voids
represent real underdense regions, we obtain 1228 voids with effective
radii spanning the range 20-100h-1Mpc and with central densities
that are, on average, 30% of the mean sample density. We release
versions of the catalogs both with and without quality cuts. 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 large difference. These BOSS and
mock void catalogs are useful for a number of cosmological and galaxy
environment studies.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 104 1228 Void catalog from the Baryon Oscillation
Spectroscopic Survey (BOSS) sample
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See also:
VII/250 : The 2dF Galaxy Redshift Survey (2dFGRS) (2dFGRS Team, 1998-2003)
V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)
J/ApJ/744/82 : Catalog of cosmic voids from the SDSS-DR7 (Varela+, 2012)
J/ApJS/208/20 : Nine-year WMAP point source catalogs (Bennett+, 2013)
J/A+A/570/A106 : VIPERS. Searching for cosmic voids (Micheletti+, 2014)
J/MNRAS/440/1248 : SDSS DR7 voids and superclusters (Nadathur+, 2014)
http://www.sdss3.org/ : SDSS-III home page
http://www.sdss.org/dr12/algorithms/boss_galaxy_ts/ : BOSS Galaxy Target
Selection (CMASS and LOWZ samples)
http://lss.phy.vanderbilt.edu/voids/ : SDSS Cosmic Void Catalogs
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Sample BOSS galaxies sample identifier (CMASS or LOWZ)
13- 17 I5 --- ID [15/22748] Void identifier within Sample
19- 25 F7.3 deg RAdeg Right Ascension in decimal degrees (J2000) (1)
27- 32 F6.3 deg DEdeg Declination in decimal degrees (J2000) (1)
34- 38 F5.3 --- z [0.2/0.7] Redshift (1)
40- 45 I6 --- NGal [12/109066] Number of galaxies in the void
47- 55 E9.3 Mpc+3 V [12260/] Total Voronoi void volume;
in units of (Mpc/h)3
57- 63 F7.3 Mpc Reff [14/453] Effective radius; Mpc/h
65- 73 E9.3 Mpc-3 nmin [/0.0002] Number density ηmin;
in units of (h/Mpc)3 (3)
75- 80 F6.3 --- delmin [-1/-0.5] Density contrast δmin (4)
82- 86 F5.3 --- r [1.5/6.2] Ratio (5)
88- 96 E9.3 --- Prob [/0.05] Probability (6)
98-104 F7.3 Mpc Dbound [7/298] Distance; Mpc/h (7)
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Note (1): Of the weighted center.
Note (3): Of the minimum density Voronoi cell in the void.
Note (4): Of the minimum density cell comparing to the
mean density at that redshift.
Note (5): Between the minimum density particle on a ridge to
the minimum density particle of the void.
Note (6): That the void arises from Poisson fluctuations.
Note (7): From the weighted center to the nearest survey boundary.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 18-Aug-2017