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Related papers: Voids in the SDSS Galaxy Survey

200 papers

The stacked density profile of cosmic voids in the galaxy distribution provides an important tool for the use of voids for precision cosmology. We study the density profiles of voids identified using the ZOBOV watershed transform algorithm…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-22 S. Nadathur , S. Hotchkiss , J. M. Diego , I. T. Iliev , S. Gottlöber , W. A. Watson , G. Yepes

We report the {\em first} systematic study of the supercluster-void network in the $\Lambda$CDM concordance cosmology treating voids and superclusters on an equal footing. We study the dark matter density field in real space smoothed with…

Astrophysics · Physics 2009-11-10 Sergei F. Shandarin

We investigate the main tensions within the current standard model of cosmology from the perspective of the main statistics of cosmic voids, using the final BOSS DR12 data set. For this purpose, we present the first estimate of the…

Cosmology and Nongalactic Astrophysics · Physics 2024-02-06 Sofia Contarini , Alice Pisani , Nico Hamaus , Federico Marulli , Lauro Moscardini , Marco Baldi

We use the deep CANDELS observations in the GOODS North and South fields to revisit the correlations between stellar mass ($M_*$), star--formation rate (SFR) and morphology, and to introduce a fourth dimension, the mass-weighted stellar…

Using data from the Sloan Digital Sky Survey (SDSS; data release 7), we have conducted a search for local analogs to the extremely compact, massive, quiescent galaxies that have been identified at z > 2. We show that incompleteness is a…

Cosmology and Nongalactic Astrophysics · Physics 2010-09-21 Edward N Taylor , Marijn Franx , Karl Glazebrook , Jarle Brinchmann , Arjen van der Wel , Pieter G van Dokkum

We investigate the level of galaxy assembly bias in the Sloan Digital Sky Survey (SDSS) main galaxy sample using ELUCID, a state-of-the-art constrained simulation that accurately reconstructed the initial density perturbations within the…

Cosmology and Nongalactic Astrophysics · Physics 2022-09-15 Andrés N. Salcedo , Ying Zu , Youcai Zhang , Huiyuan Wang , Xiaohu Yang , Yiheng Wu , Yipeng Jing , Houjun Mo , David H. Weinberg

Using a sample of cosmic voids identified in the Sloan Digital Sky Survey Data Release 7, we study the star formation activity of void galaxies. The properties of galaxies living in voids are compared with those of galaxies living in the…

Astrophysics of Galaxies · Physics 2015-06-23 Elena Ricciardelli , Antonio Cava , Jesus Varela , Vicent Quilis

The Northern Local Void is a huge underdense region of the nearby Universe situated between the Hercules, Coma and Local Superclusters. We present an investigation of the galaxy distribution in the Northern Local Void using void statistics.…

Astrophysics · Physics 2007-05-23 U. Lindner , J. Einasto , M. Einasto , K. J. Fricke

Inspired on the well known dynamical dichotomy predicted in voids, where some underdense regions expand whereas others collapse due to overdense surrounding regions, we explored the interplay between the void inner dynamics and its large…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-30 A. N. Ruiz , D. J. Paz , M. Lares , H. E. Luparello , L. Ceccarelli , D. G. Lambas

We investigate the behavior of the fifth force in voids in chameleon models using the spherical collapse method. Contrary to Newtonian gravity, we find the fifth force is repulsive in voids. The strength of the fifth force depends on the…

Cosmology and Nongalactic Astrophysics · Physics 2013-05-24 Joseph Clampitt , Yan-Chuan Cai , Baojiu Li

We study the optical properties of a large sample of galaxies in low-density regions of the nearby universe. We make a 5/h Mpc-smoothed map of the galaxy density throughout the Center for Astrophysics Redshift Survey (CfA2) to identify…

Astrophysics · Physics 2009-10-31 N. A. Grogin , M. J. Geller

Our understanding of how the size of galaxies has evolved over cosmic time is based on the use of the half-light (effective) radius as a size indicator. Although the half-light radius has many advantages for structurally parameterising…

Astrophysics of Galaxies · Physics 2023-12-14 Fernando Buitrago , Ignacio Trujillo

Cosmic voids are the largest and most underdense structures in the Universe. Their properties have been shown to encode precious information about the laws and constituents of the Universe. We show that machine learning techniques can…

Cosmology and Nongalactic Astrophysics · Physics 2023-10-10 Bonny Y. Wang , Alice Pisani , Francisco Villaescusa-Navarro , Benjamin D. Wandelt

The Sloan Digital Sky Survey (SDSS) and photometric/spectroscopic surveys in the GOODS-South field (the Chandra Deep Field-South, CDFS) are used to construct volume-limited, stellar mass-selected samples of galaxies at redshifts 0<z<1. The…

We study the correlation between galaxy structure and the quenching of star formation using a sample of SDSS central galaxies with stellar masses 9.75< log M_*/M_sun<11.25 and redshifts z<0.075. GALEX UV data are used to cleanly divide the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Jerome J. Fang , S. M. Faber , David C. Koo , Avishai Dekel

We present the first measurements of the Probability Distribution Function (PDF) of galaxy fluctuations in the VIMOS-VLT Deep Survey (VVDS) cone, covering 0.4x0.4 deg between 0.4<z<1.5. The second moment of the PDF, i.e. the rms…

We present the largest, most homogeneous catalogue of merging galaxies in the nearby universe obtained through the Galaxy Zoo project - an interface on the world-wide web enabling large-scale morphological classification of galaxies through…

We study a sample of 43 early-type galaxies, selected from the SDSS because they appeared to have velocity dispersion > 350 km/s. High-resolution photometry in the SDSS i passband using HRC-ACS on board the HST shows that just less than…

Astrophysics · Physics 2009-11-13 M. Bernardi , J. B. Hyde , A. Fritz , R. K. Sheth , K. Gebhardt , R. C. Nichol

[Abridged] We use mock catalogues based on the GALICS model (Hatton et al. 03) to explore the nature of galaxy clustering observed in the SDSS. We measure low and high order angular clustering statistic from these mock catalogues, after…

We use deep Herschel PACS and SPIRE observations in GOODSS, GOODSN and COSMOS to estimate the average dust mass (Mdust) of galaxies on a redshift-stellar mass (Mstar)-SFR grid. We study the scaling relations between Mdust, Mstar and SFR at…