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Related papers: Toward understanding rich superclusters

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We study the morphology of galaxy populations of the richest superclusters from the catalogue of superclusters of galaxies in the 2dF Galaxy Redshift Survey using the luminosity density distribution and Minkowski functional V3. We compare…

We study the morphology of the richest superclusters from the catalogues of superclusters of galaxies in the 2dF Galaxy Redshift Survey and compare the morphology of real superclusters with model superclusters in the Millennium Simulation.…

We present the results of the study of the morphology and galaxy content of the Sloan Great Wall (SGW). We use the luminosity density field to determine superclusters in the SGW, and the fourth Minkowski functional V_3 and the morphological…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 M. Einasto , L. J. Liivamagi , E. Tempel , E. Saar , E. Tago , P. Einasto , I. Enkvist , J. Einasto , V. J. Martinez , P. Heinamaki , P. Nurmi

We compare the galaxy populations in superclusters of different morphology in the nearby Universe (180 < d < 270 Mpc) to see whether the inner structure and overall morphology of superclusters are important in shaping galaxy properties in…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-18 M. Einasto , H. Lietzen , E. Tempel , M. Gramann , L. J. Liivamagi , J. Einasto

We study the morphology of a set of superclusters drawn from the SDSS DR7. We calculate the luminosity density field to determine superclusters from a flux- limited sample of galaxies from SDSS DR7, and select superclusters with 300 and…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 M. Einasto , L. J. Liivamagi , E. Tago , E. Saar , E. Tempel , J. Einasto , V. J. Martinez , P. Heinamaki

We use catalogues of superclusters of galaxies from the 2dF Galaxy Redshift Survey to study the properties of galaxies in superclusters. We compare the properties of galaxies in high and low density regions of rich superclusters, in poor…

Modern redshift surveys such as the 2 degree field Galaxy Redshift Survey (2dFGRS) and the Sloan Digital Sky Survey (SDSS) reveal the fully 3 dimensional distribution of a million or so galaxies over a large cosmological volume. Visually…

Astrophysics · Physics 2009-09-29 Jatush V. Sheth , Varun Sahni

We studied superclusters of galaxies in a volume-limited sample extracted from the Sloan Digital Sky Survey Data Release 7 (SDSS/DR7) and from mock catalogues based on a semi-analytical model of galaxy evolution in the Millenium Simulation.…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 M. V. Costa-Duarte , L. Sodré , F. Durret

We investigate properties of superclusters of galaxies found on the basis of the 2dF Galaxy Redshift Survey, and compare them with properties of superclusters from the Millennium Simulation. We study the dependence of various…

We study the relations between the multimodality of galaxy clusters drawn from the SDSS DR8 and the environment where they reside. As cluster environment we consider the global luminosity density field, supercluster membership, and…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 M. Einasto , L. J. Liivamagi , E. Tempel , E. Saar , J. Vennik , P. Nurmi , M. Gramann , J. Einasto , E. Tago , P. Heinamaki , A. Ahvensalmi , V. J. Martinez

In this review, we take the reader on a journey. We start by looking at the properties of galaxies in the cores of rich clusters. We have focused on the overall picture: star formation in clusters is strongly suppressed relative to field…

Astrophysics · Physics 2009-09-29 Richard G. Bower , Michael L. Balogh

We analyze the relationship between star formation (SF), substructure, and supercluster environment in a sample of 107 nearby galaxy clusters using data from the Sloan Digital Sky Survey. Previous works have investigated the relationships…

Astrophysics of Galaxies · Physics 2017-01-25 S. A. Cohen , R. C. Hickox , G. A. Wegner , M. Einasto , J. Vennik

We study the morphology, luminosity and mass of the superclusters from the BOSS Great Wall (BGW), a recently discovered very rich supercluster complex at the redshift $z = 0.47$. We have employed the Minkowski functionals to quantify…

In the cosmic web, galaxy superclusters or their high-density cores are the largest objects that may collapse at present or during the future evolution. We study the dynamical state and possible future evolution of galaxy superclusters from…

Cosmology and Nongalactic Astrophysics · Physics 2016-11-02 Maret Einasto , Heidi Lietzen , Mirt Gramann , Elmo Tempel , Enn Saar , Lauri Juhan Liivamägi , Pekka Heinämäki , Pasi Nurmi , Jaan Einasto

[abridged] We analyze a sample of 9 massive clusters at 0.4<z<0.6 observed with MegaCam in 4 photometric bands (g,r,i,z) from the core to a radius of 5 Mpc (~4000 galaxies). Galaxy cluster candidates are selected using photometric redshifts…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 M. Huertas-Company , G. Foex , G. Soucail , R. Pello

Galaxy superclusters, the largest galaxy structures in the cosmic web, are formed due to the gravitational collapse (although they are not usually gravitationally bound). Their geometrical properties can shed light on the structure…

Cosmology and Nongalactic Astrophysics · Physics 2023-04-20 Satadru Bag , Lauri Juhan Liivamägi , Maret Einasto

The characterization of the internal structure of the superclusters of galaxies (walls, filaments and knots where the clusters are located) is paramount for understanding the formation of the Large Scale Structure and for outlining the…

Superclusters are the largest massive structures in the cosmic web on tens to hundreds of megaparsecs (Mpc) scales. They are the largest assembly of galaxy clusters in the Universe. Apart from a few detailed studies of such structures,…

Cosmology and Nongalactic Astrophysics · Physics 2023-09-13 Shishir Sankhyayan , Joydeep Bagchi , Elmo Tempel , Surhud More , Maret Einasto , Pratik Dabhade , Somak Raychaudhury , Ramana Athreya , Pekka Heinämäki

We present the results of the study of the substructure and galaxy content of ten rich clusters of galaxies in three different superclusters of the Sloan Great Wall. We determine the substructure in clusters using the 'Mclust' package from…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 M. Einasto , E. Tago , E. Saar , P. Nurmi , I. Enkvist , P. Einasto , P. Heinamaki , L. J. Liivamagi , E. Tempel , J. Einasto , V. J. Martinez , J. Vennik , P. Pihajoki

Galaxy clusters exhibit a rich morphology during the early and intermediate stages of mass assembly, especially beyond their boundary. A classification scheme based on shapefinders deduced from the Minkowski functionals is examined to fully…

Cosmology and Nongalactic Astrophysics · Physics 2021-02-10 C. Schimd , M. Sereno
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