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The environment is known to affect the formation and evolution of galaxies considerably best visible through the well-known morphology-density relationship. In this paper we study the effect of environment on the evolution of early-type…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Daniel Thomas , Claudia Maraston , Kevin Schawinski , Marc Sarzi , Joseph Silk

We report on a uniform comparative analysis of the fundamental parameters of early-type galaxies at z~1 down to a well defined magnitude limit (M_B\leq -20.0 in the field and M_B\leq -20.5 in the clusters). The changes in the M/L_B ratio…

Astrophysics · Physics 2011-02-11 Sperello di Serego Alighieri , Barbara Lanzoni , Inger Jorgensen

New information has recently become available on the fundamental plane for various samples of early-type galaxies with redshift up to 1.3, both in clusters and in the field. This information is reviewed and clues are derived on the…

Astrophysics · Physics 2007-05-23 Sperello di Serego Alighieri , Barbara Lanzoni

The properties of galaxies are strongly correlated with their environment, with red galaxies dominating galaxy clusters and blue galaxies dominating the general field. However, not all field galaxies are young: studies of the colors, line…

Astrophysics · Physics 2007-05-23 Pieter van Dokkum , Ryan Quadri

The aim of this paper is to set constraints of the epochs of early-type galaxy formation through the 'archaeology' of the stellar populations in local galaxies. Using our models of absorption line indices that account for variable abundance…

Astrophysics · Physics 2009-07-09 D. Thomas , C. Maraston , R. Bender , C. Mendes de Oliveira

From the Sloan Digital Sky Survey (SDSS) Data Release 5 (DR5), we extract a sample of 4594 galaxies at redshifts 0.02<z<0.03, complete down to a stellar mass of M=10^10 Msol. We quantify their structure (Sersic index), morphology (Sersic…

Astrophysics · Physics 2009-11-13 Arjen van der Wel

The observed properties of galaxies are strongly dependent on both their total stellar mass and their morphology. Furthermore, the environment is known to play a strong role in shaping them. The galaxy population in the local universe that…

[abridged] We study the dependence of the galaxy size evolution on morphology, stellar mass and large scale environment for a sample of 298 group and 384 field quiescent early-type galaxies from the COSMOS survey, selected from z~1 to the…

We study the photometric and spectral properties of 39320 early-type galaxies within the SDSS, as a function of both local environment and redshift. The distance to the nearest cluster of galaxies and the distance to the 10th nearest…

Astrophysics · Physics 2008-11-26 M. Bernardi , R. C. Nichol , R. K. Sheth , C. J. Miller , J. Brinkmann

We explore the evolution of the morphology density relation using the COSMOS-ACS survey and previous cluster studies. The Gini parameter measured in a Petrosian aperture is found to be an effective way of selecting early-type galaxies free…

Astrophysics · Physics 2009-11-13 P. L. Capak , R. G. Abraham , R. S. Ellis , B. Mobasher , N. Z. Scoville , K. Sheth , A. Koekemoer

We have used a large sample of low-inclination spiral galaxies with radially-resolved optical and near-infrared photometry to investigate trends in star formation history with radius as a function of galaxy structural parameters. A maximum…

Astrophysics · Physics 2009-05-29 Eric F. Bell , Roelof S. de Jong

We investigate how the environment affects the assembly history of massive galaxies. For that purpose, we make use of SHARDS and HST spectro-photometric data, whose depth, spectral resolution, and wavelength coverage allow to perform a…

It is by now well established that galaxy evolution is driven by intrinsic and environmental processes, both contributing to shape the observed properties of galaxies. A number of early studies, both observational and theoretical, have…

Astrophysics of Galaxies · Physics 2015-08-06 A. Pasquali

Using the third data release of the Sloan Digital Sky Survey (SDSS) we have rigorously defined a volume limited sample of early-type galaxies in the redshift range z < 0.1. We have defined the density of the local environment for each…

Astrophysics · Physics 2009-11-11 M. S. Clemens , A. Bressan , B. Nikolic , P. Alexander , F. Annibali , R. Rampazzo

These notes collect together current work on the effect of the environment on galaxy formation and evolution. They are broken into four distinct parts. The first deals with the observational debate surrounding the question of whether…

Astrophysics · Physics 2007-05-23 Richard G Bower

We study the environmental effect of galaxy evolution as a function of the underlying 3D dark matter density for the first time at $z=2-2.5$, in which the underlying matter density is reconstructed from observed galaxies through dynamical…

Astrophysics of Galaxies · Physics 2024-07-23 Rieko Momose , Khee-Gan Lee , Benjamin Horowitz , Metin Ata , Jeyhan S. Kartaltepe

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 present a study of the spectroscopic and photometric properties of galaxies in six nearby clusters. We perform a partial correlation analysis on our dataset to investigate whether the correlation between star formation rates in galaxies…

Astrophysics · Physics 2009-11-10 Daniel Christlein , Ann Zabludoff

We use \sim 2000 galaxies belonging to different environments to show how the fractions of different galaxy morphological types vary with global environment and as function of galaxy stellar mass at low redshift. Considering mass limited…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Rosa Calvi , Bianca M. Poggianti , Giovanni Fasano , Benedetta Vulcani

We study the enviromental dependence and the morphological composition of the galaxy color-magnitude diagram at z~0.7, using a pilot sub-sample of ~2000 galaxies from the COSMOS surve, with I_AB<24, photometric redshift within 0.61<z<0.85…

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