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相关论文: Voids in the SDSS Galaxy Survey

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We perform a statistical study focused on void environments. We examine galaxy density profiles around voids in the SDSS, finding a correlation between void--centric distance to the shell of maximum density and void radius when a maximum in…

宇宙学与河外天体物理 · 物理学 2015-06-16 L. Ceccarelli , D. Paz , M. Lares , N. Padilla , D. García Lambas

A method for detecting voids in the galaxy distribution is presented. Using this method, we have identified 732 voids with a radius of the seed sphere Rseed > 4.0h^{-1}Mpc in a volume-limited sample of galaxies from the southern part of the…

天体物理学 · 物理学 2007-05-23 Anton V. Tikhonov

The sizes and shapes of voids in a galaxy survey depend not only on the physics of structure formation, but also on the sampling density of the survey and on the algorithm used to define voids. Using an N-body simulation with a CDM power…

天体物理学 · 物理学 2009-10-31 Jason D. Schmidt , Barbara S. Ryden , Adrian L. Melott

Voids are the most prominent feature of the LSS of the universe. Still, they have been generally ignored in quantitative analysis of it, essentially due to the lack of an objective tool to identify and quantify the voids. To overcome this,…

天体物理学 · 物理学 2008-11-26 Hagai El-Ad , Tsvi Piran

We have analyzed the distribution of void sizes in the two-dimensional slices of the Las Campanas Redshift Survey (LCRS). Fourteen volume-limited subsamples were extracted from the six slices to cover a large part of the survey and to test…

天体物理学 · 物理学 2009-07-30 V. Mueller , S. Arbabi-Bidgoli , J. Einasto , D. Tucker

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 extract void catalogs from the Sloan Digital Sky Survey Data Release 16 (SDSS DR16) survey and also from the Millennium simulation. We focus our comparison on distribution of galaxies brighter than $M_r < -18$ inside voids and study the…

宇宙学与河外天体物理 · 物理学 2021-09-23 Saeed Tavasoli

We investigate the environmental dependence of galaxy population properties in a complete volume-limited sample of 91566 galaxies in the redshift range 0.05 <= z <= 0.095 and with M_r <= -20.0, selected from the Sloan Digital Sky Survey…

天体物理学 · 物理学 2009-11-11 G. Sorrentino , V. Antonuccio-Delogu , A. Rifatto

In this work we investigate the effects of the environment on the evolution of void galaxies. In particular, we study their morphology and explore its dependence with their location within the void where the galaxies reside, as well as with…

We explore the morphology of galaxies living in the proximity of cosmic voids, using a sample of voids identified in the Sloan Digital Sky Survey Data Release 7. At all stellar masses, void galaxies exhibit morphologies of a later type than…

星系天体物理 · 物理学 2017-09-06 Elena Ricciardelli , Antonio Cava , Jesus Varela , Amelie Tamone

For the 2dFGRS we study the properties of voids and of fainter galaxies within voids that are defined by brighter galaxies. Our results are compared with simulated galaxy catalogues from the Millenium simulation coupled with a…

天体物理学 · 物理学 2007-10-16 Alexander M. von Benda-Beckmann , Volker Mueller

Using the sample presented in Pan:2011, we analyse the photometric properties of 88,794 void galaxies and compare them to galaxies in higher density environments with the same absolute magnitude distribution. In Pan et al. (2011), we found…

宇宙学与河外天体物理 · 物理学 2015-06-05 Fiona Hoyle , Michael S. Vogeley , Danny Pan

We present a comparison of the properties of galaxies in the most underdense regions of the Universe, where the galaxy number density is less than 10% of the mean density, with galaxies from more typical regions. We have compiled a sample…

天体物理学 · 物理学 2009-11-11 Santiago G. Patiri , Francisco Prada , Jon Holtzman , Anatoly Klypin , Juan Betancort-Rijo

Galaxies in cosmic voids have been reported with properties related to a delayed evolution with respect to the Universe in general. These characteristics reflect the interaction of galaxies with the environment. However, it is not clear the…

Cosmic voids are underdense regions within the large-scale structure of the Universe, spanning a wide range of physical scales - from a few megaparsecs (Mpc) to the largest observable structures. Their distinctive properties make them…

We investigate the structural, photometric, and dynamical evolution of cosmic voids and their galaxy populations from $z=2.09$ to the present, focusing on void size as a key evolutionary parameter. Using void catalogs from four Millennium…

宇宙学与河外天体物理 · 物理学 2026-05-28 Saeed Tavasoli

Voids are the most prominent feature of the large-scale structure of the universe. Still, they have been generally ignored in quantitative analysis of it, essentially due to the lack of an objective tool to identify the voids and to…

天体物理学 · 物理学 2011-04-15 Hagai El-Ad

The influence of under-dense environments on the formation and evolution of galaxies is studied by analysing the photometric properties of ~200 galaxies residing in voids, taken from our SDSS DR10 void catalogue up to z ~0.055. We split…

宇宙学与河外天体物理 · 物理学 2015-06-23 Saeed Tavasoli , Hadi Rahmani , Habib G. Khosroshahi , Kaveh Vasei , Matthew D. Lehnert

One of the most striking features in galaxy redshift surveys is the ubiquitous presence of voids. However, voids have not been extensively studied due to observational limitations. Until recently, galaxy redshift surveys included only a few…

天体物理学 · 物理学 2007-05-23 Fiona Hoyle , Michael S Vogeley

We investigate the impact of filament and void environments on galaxies, looking for residual effects beyond the known relations with environment density. We quantified the host environment of galaxies as the distance to the spine of the…

星系天体物理 · 物理学 2017-03-29 Teet Kuutma , Antti Tamm , Elmo Tempel
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