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Related papers: Brightest group galaxies and the large-scale envir…

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We analyse properties of galaxy groups and their dependence on the large scale environment as defined by superstructures. We find that group galaxy cross correlations depend only on group properties regardless the groups reside in…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 H. E. Luparello , M. Lares , C. Y. Yaryura , D. Paz , N. Padilla , D. G. Lambas

We investigate the dependence of several galaxy properties on the environment and cluster identification techniques. We select clusters of galaxies from two catalogues based on the SDSS: the ROSAT-SDSS Galaxy Cluster Survey, and the MaxBCG…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 V. Coenda , H. Muriel

Compact groups of galaxies are devised as extreme environments where interactions may drive galaxy evolution. In this work, we analysed whether the luminosities of galaxies inhabiting compact groups differ from those of galaxies in loose…

Astrophysics of Galaxies · Physics 2022-05-25 Ariel Zandivarez , Eugenia Diaz-Gimenez , Antonela Taverna

We investigate the clustering of galaxy groups and clusters in the SDSS using the Berlind et al. (2006) group sample, which is designed to identify galaxy systems that each occupy a single dark matter halo. We estimate group masses from…

We investigate the dependence of physical properties of galaxies brighter than M_r=-18.0 in the SDSS on environment, as measured by local density using an adaptive smoothing kernel. We find that variations of galaxy properties with…

We analyse how the properties of galaxies in groups identified in the Sloan Digital Sky Survey depend on the environment. In particular, we study the relationship between galaxy properties and group mass and group-centric distance. Among…

Astrophysics · Physics 2009-11-11 Hector J. Martinez , Hernan Muriel

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…

We analyse the dependence of clustering properties of galaxies as a function of their large-scale environment. In order to characterize the environment on large scales, we use the catalogue of future virialized superstructures (FVS) by…

Cosmology and Nongalactic Astrophysics · Physics 2014-01-30 C. Yamila Yaryura , Marcelo Lares , Heliana E. Luparello , Dante J. Paz , Diego G. Lambas , Nelson Padilla , Mario A. Sgró

Physical processes influencing the properties of galaxies can be traced by the dependence and evolution of galaxy properties on their environment. A detailed understanding of this dependence can only be gained through comparison of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 David Wilman , Stefano Zibetti , Tamas Budavari

We study the correlation between different properties of bright (L>L*) galaxies in clusters and the environment in the Sloan Digital Sky Survey (SDSS). Samples of clusters of galaxies used in this paper are those selected by Coenda & Muriel…

Astrophysics · Physics 2009-11-13 Hector J. Martinez , Valeria Coenda , Hernan Muriel

We measure the Petrosian structural properties of 33 brightest cluster galaxies (BCGs) at redshifts z<0.1 in X-ray selected clusters with a wide range of X-ray luminosities. We find that some BCGs show distinct signatures in their Petrosian…

Astrophysics · Physics 2016-08-30 S. Brough , C. Collins , D. Burke , P. Lynam , R. Mann

In this paper, we study the variations of group galaxy properties according to the assembly history in SDSS-DR6 selected groups. Using mock SDSS group catalogues, we find two suitable indicators of group formation time: i) the isolation of…

Astrophysics · Physics 2009-11-13 Tatiana Zapata , Josefa Perez , Nelson Padilla , Patricia Tissera

Majority of all galaxies reside in groups of less than 50 member galaxies. These groups are distributed in various large-scale environments from voids to superclusters. Evolution of galaxies is affected by the environment in which they…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Heidi Lietzen , Elmo Tempel , Pekka Heinämäki , Pasi Nurmi , Maret Einasto , Enn Saar

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…

We have selected a sample of 88 nearby (z<0.1) galaxy clusters from the SDSS-DR4 with redshift information for the cluster members. We have derived global properties for each cluster, such as their mean recessional velocity, velocity…

Astrophysics · Physics 2019-08-19 J. A. L. Aguerri , R. Sanchez-Janssen , C. Munoz-Tunon

We perform an analysis of the luminosities of galaxies in groups in the SDSS DR7. We analyse the luminosity function (LF) as a function of group mass for different photometric bands, galaxy populations, galaxy positions within the groups,…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Ariel Zandivarez , Hector J. Martinez

We study the influence of the environment on the evolution of galaxies by investigating the luminosity function (LF) of galaxies of different morphological types and colours at different environmental density levels. We construct the LFs…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-17 E. Tempel , E. Saar , L. J. Liivamägi , A. Tamm , J. Einasto , M. Einasto , V. Müller

The dependence of the luminosity function of cluster galaxies on the evolutionary state of the parent cluster is still an open issue, in particular as concern the formation/evolution of the brightest cluster galaxies. We plan to study the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 R. Barrena , M. Girardi , W. Boschin , F. Mardirossian

Using a large galaxy group catalogue constructed from the SDSS, we investigate the correlation between various galaxy properties and halo mass. We split the population of galaxies in early types, late types, and intermediate types, based on…

Astrophysics · Physics 2009-06-16 Simone M. Weinmann , Frank C. van den Bosch , Xiaohu Yang , H. J. Mo

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…

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