论文标题
更新SDSS DR7主样本的空隙目录
Updated void catalogs of the SDSS DR7 main sample
论文作者
论文摘要
我们使用Sloan Digital Sky Survey Data Release 7（SDSS DR7）的体积有限的子样本生成了几个公共空隙目录。 Using new implementations of three different void-finding algorithms, VoidFinder and two ZOBOV-based algorithms (VIDE and REVOLVER), we identify 1163, 531, and 518 cosmic voids with radii >10 Mpc/h, respectively, out to a redshift of z = 0.114 assuming a Planck 2018 cosmology, and 1184, 535, and 519 cosmic假设WMAP5宇宙学的空隙。我们计算所有空隙的有效半径和中心，没有有效半径> 54 MPC/h。对于所有三种算法，中值有效半径为15-19 MPC/H。我们提取和讨论空隙种群的几种特性，包括径向密度曲线，空隙中包含的目录的体积分数以及空隙中包含的星系的比例。使用从Horizon运行的4个N-N体模拟创建的64个模拟星系目录，我们比较了模拟和观察到的void属性，并在SDSS DR7和模拟目录结果之间找到良好的一致性。
We produce several public void catalogs using a volume-limited subsample of the Sloan Digital Sky Survey Data Release 7 (SDSS DR7). Using new implementations of three different void-finding algorithms, VoidFinder and two ZOBOV-based algorithms (VIDE and REVOLVER), we identify 1163, 531, and 518 cosmic voids with radii >10 Mpc/h, respectively, out to a redshift of z = 0.114 assuming a Planck 2018 cosmology, and 1184, 535, and 519 cosmic voids assuming a WMAP5 cosmology. We compute effective radii and centers for all voids and find none with an effective radius >54 Mpc/h. The median void effective radius is 15-19 Mpc/h for all three algorithms. We extract and discuss several properties of the void populations, including radial density profiles, the volume fraction of the catalog contained within voids, and the fraction of galaxies contained within voids. Using 64 mock galaxy catalogs created from the Horizon Run 4 N-body simulation, we compare simulated and observed void properties and find good agreement between the SDSS DR7 and mock catalog results.
