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相关论文: Updated void catalogs of the SDSS DR7 main sample

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We study the distribution of cosmic voids and void galaxies using Sloan Digital Sky Survey Data Release 7 (SDSS DR7). Using the VoidFinder algorithm as described by Hoyle 2002, we identify 1054 statistically significant voids in the…

宇宙学与河外天体物理 · 物理学 2015-05-27 Danny C. Pan , Michael S. Vogeley , Fiona Hoyle , Yun-Young Choi , Changbom Park

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…

We produce the most comprehensive public void catalog to date using the Sloan Digital Sky Survey Data Release 7 main sample out to redshift z=0.2 and the luminous red galaxy sample out to z=0.44. Using a modified version of the…

宇宙学与河外天体物理 · 物理学 2015-06-05 P. M. Sutter , Guilhem Lavaux , Benjamin D. Wandelt , David H. Weinberg

We present a detailed description of our void finding algorithm which is an extension of the prescription by Hoyle and Vogeley (2002). We include a discussion of the reproducibility and robustness of the algorithm as well as the statistical…

宇宙学与河外天体物理 · 物理学 2009-07-22 Caroline Foster , Lorne A. Nelson

We present and study cosmic voids identified using the watershed void finder VIDE in the Sloan Digital Sky Survey Data Release 9, compare these voids to ones identified in mock catalogs, and assess the impact of the survey mask on void…

宇宙学与河外天体物理 · 物理学 2015-06-17 P. M. Sutter , Guilhem Lavaux , Benjamin D. Wandelt , David H. Weinberg , Michael S. Warren , Alice Pisani

We present a public catalogue of voids in the Baryon Oscillation Spectroscopic Survey (BOSS) Data Release 11 LOWZ and CMASS galaxy surveys. This catalogue contains information on the location, sizes, densities, shapes and bounding surfaces…

宇宙学与河外天体物理 · 物理学 2016-09-02 Seshadri Nadathur

The structure of the low redshift Universe is dominated by a multi-scale void distribution delineated by filaments and walls of galaxies. The characteristics of voids; such as morphology, average density profile, and correlation function,…

宇宙学与河外天体物理 · 物理学 2024-09-04 Manu Aggarwal , Motonari Tonegawa , Stephen Appleby , Changbom Park , Vipul Periwal

The study of the interesting cosmological properties of voids in the Universe depends on the efficient and robust identification of such voids in galaxy redshift surveys. Recently, Sutter et al. (2012) have published a public catalogue of…

宇宙学与河外天体物理 · 物理学 2014-04-29 Seshadri Nadathur , Shaun Hotchkiss

We identify voids as maximal non-overlapping spheres within the haloes of the Uchuu simulation and three smaller halo simulation boxes with smaller volume and different $\sigma_{8}$ values, and galaxies with redshift in the range…

宇宙学与河外天体物理 · 物理学 2025-03-05 Elena Fernández-García , Juan E. Betancort-Rijo , Francisco Prada , Tomoaki Ishiyama , Anatoly Klypin

We construct an anti-halo void catalogue of $150$ voids with radii $R > 10\,h^{-1}\mathrm{\,Mpc}$ in the Local Super-Volume ($<135\,h^{-1}\mathrm{\,Mpc}$ from the Milky Way), using posterior resimulation of initial conditions inferred by…

宇宙学与河外天体物理 · 物理学 2024-05-17 Stephen Stopyra , Hiranya V. Peiris , Andrew Pontzen , Jens Jasche , Guilhem Lavaux

Using a nearest neighbor analysis, we construct a sample of void galaxies from the Sloan Digital Sky Survey (SDSS) and compare the photometric properties of these galaxies to the population of non-void (wall) galaxies. We trace the density…

天体物理学 · 物理学 2009-11-10 Randall R. Rojas , Michael S. Vogeley , Fiona Hoyle , Jon Brinkmann

We analyze a (120 h^{-1} Mpc)^3 adaptive mesh refinement hydrodynamic simulation that contains a higher-resolution 31 x 31 x 35 h^{-3} Mpc subvolume centered on a ~30 Mpc diameter void. Our detailed ~1 kpc resolution allows us to identify…

宇宙学与河外天体物理 · 物理学 2015-05-27 Kathryn Kreckel , M. Ryan Joung , Renyue Cen

We present a new catalogue of distances and peculiar velocities (PVs) of $34,059$ early-type galaxies derived from Fundamental Plane (FP) measurements using data from the Sloan Digital Sky Survey (SDSS). This $7016\,\mathrm{deg}^{2}$…

宇宙学与河外天体物理 · 物理学 2022-06-29 Cullan Howlett , Khaled Said , John R. Lucey , Matthew Colless , Fei Qin , Yan Lai , R. Brent Tully , Tamara M. Davis

The aim of this study is to distinguish genuine cosmic voids, found in a galaxy catalog by the void finder ZOBOV-VIDE, from under-dense regions in a Poisson distribution of objects. For this purpose, we perform two multivariate analyses…

宇宙学与河外天体物理 · 物理学 2019-03-14 M. -C Cousinou , A. Pisani , A. Tilquin , N. Hamaus , A. -J Hawken , S. Escoffier

We create a sample of spectroscopically identified galaxies with $z < 0.2$ from the Sloan Digital Sky Survey (SDSS) Data Release 7, covering 6813 deg$^2$. Galaxies are chosen to sample the highest mass haloes, with an effective bias of 1.5,…

宇宙学与河外天体物理 · 物理学 2015-06-22 Ashley J. Ross , Lado Samushia , Cullan Howlett , Will J. Percival , Angela Burden , Marc Manera

We report the detection, with a high level of confidence, of coherent outflows around voids found in the seventh data release of the Sloan Digital Sky Survey (SDSS DR7). In particular, we developed a robust <|cos theta|> statistical test to…

宇宙学与河外天体物理 · 物理学 2015-06-04 Santiago G. Patiri , Juan Betancort-Rijo , Francisco Prada

We present catalogues of voids for the SDSS DR7 redshift survey and for Millennium I simulation mock data. We aim to compare the observations with simulations based on a $\Lambda$CDM model and a semi-analytic galaxy formation model. We use…

宇宙学与河外天体物理 · 物理学 2015-06-11 Saeed Tavasoli , Kaveh Vasei , Roya Mohayaee

We have carefully selected a sample of 60 galaxies that reside in the deepest underdensities of geometrically identified voids within the SDSS. HI imaging of 55 galaxies with the WSRT reveals morphological and kinematic signatures of…

宇宙学与河外天体物理 · 物理学 2015-06-04 K. Kreckel , E. Platen , M. A. Aragón-Calvo , J. H. van Gorkom , R. van de Weygaert , J. M. van der Hulst , B. Beygu

What do we know about voids in the dark matter distribution given the Sloan Digital Sky Survey (SDSS) and assuming the $\Lambda\mathrm{CDM}$ model? Recent application of the Bayesian inference algorithm BORG to the SDSS Data Release 7 main…

宇宙学与河外天体物理 · 物理学 2015-06-23 Florent Leclercq , Jens Jasche , P. M. Sutter , Nico Hamaus , Benjamin Wandelt
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