VAST void catalogs for SDSS DR7

Version 1 of the void catalogs.  The peer-reviewed publication for these catalogs will be submitted to the Astrophysical Journal Supplemental Series, an American Astronomical Society journal. Please cite this article when using any of these catalogs.

We provide three void catalogs using a volume-limited subsample of the SDSS DR7 using new implementations of two different void-finding algorithms from the Void Analysis Software Toolkit (VAST): VoidFinder and Voronoi Voids (V²). We identify 1159 cosmic voids with VoidFinder, 534 with V² using VIDE pruning, and 518 with V² using REVOLVER pruning.  These catalogs exist within the SDSS DR7 main survey volume, out to a maximum redshift of 0.114. Effective radii and centers for all voids are computed and included with the catalogs; the median void effective radius is 15-17 h^-1 Mpc for all three catalogs, and none have an effective radius larger than 54 h^-1 Mpc.

All catalog files are in ASCII format with commented headers.  An example of each file (except the galaxy file associated with V²) is shown in Tables 1-5 in the associated journal article. For each galaxy in the _galzones.dat files, the value in the index column corresponds to that galaxy's row in V2_nsa_v1_0_1_gal.txt.  Guidance on how to use these catalogs can be found at https://vast.readthedocs.io/en/latest/.

• VoidFinder
  • VoidFinder-nsa_v1_0_1_main_comoving_holes.txt
  • VoidFinder-nsa_v1_0_1_main_comoving_maximals.txt
• V²
  • V2_nsa_v1_0_1_gal.txt
  • VIDE pruning
    • V2_VIDE-nsa_v1_0_1_galzones.dat
    • V2_VIDE-nsa_v1_0_1_zonevoids.dat
    • V2_VIDE-nsa_v1_0_1_zobovoids.dat
  • REVOLVER pruning
    • V2_REVOLVER-nsa_v1_0_1_galzones.dat
    • V2_REVOLVER-nsa_v1_0_1_zonevoids.dat
    • V2_REVOLVER-nsa_v1_0_1_zobovoids.dat