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Related papers: Green Valley galaxies as a transition population i…

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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

In this Letter, we analyse the radial UV-optical color distributions in a sample of low redshift green valley (GV) galaxies, with the Galaxy Evolution Explorer (GALEX)+Sloan Digital Sky Survey (SDSS) images, to investigate how the residual…

Astrophysics of Galaxies · Physics 2015-06-22 Zhizheng Pan , Jinrong Li , Weipeng Lin , Jing Wang , Xu Kong

We are exploring galaxy evolution in low density environments exploiting smooth particle hydrodynamic simulations including chemo-photometric implementation. From a large grid of simulations of galaxy encounters and mergers starting from…

Astrophysics of Galaxies · Physics 2020-01-08 Paola Mazzei , Roberto Rampazzo , Antonietta Marino , Ginevra Trinchieri , Michela Uslenghi , Anna Wolter

We examine the evolution of intrinsic u-r colours of galaxies in the EAGLE cosmological hydrodynamical simulations, which has been shown to reproduce the observed redshift z=0.1 colour-magnitude distribution well. The median u-r of…

The analysis of galaxy properties and the relations among them and the environment, can be used to investigate the physical processes driving galaxy evolution. We study the cluster A209 by using the CLASH-VLT spectroscopic data combined…

We investigate the environmental dependence of the stellar populations of galaxies in SDSS DR7. Echoing earlier works, we find that satellites are both more metal-rich (<0.1 dex) and older (<2 Gyr) than centrals of the same stellar mass.…

Astrophysics of Galaxies · Physics 2020-11-25 James Trussler , Roberto Maiolino , Claudia Maraston , Yingjie Peng , Daniel Thomas , Daniel Goddard , Jianhui Lian

In spatially resolved galaxy observations, star formation rate radial profiles are found to correlate with total specific star formation rates. A central depletion in star formation is thought to correlate with the globally depressed star…

Astrophysics of Galaxies · Physics 2019-04-10 Tjitske K. Starkenburg , Stephanie Tonnesen , Claire Kopenhafer

We examine the star formation properties of group and field galaxies in two surveys, the Sloan Digital Sky Survey (SDSS; at z ~ 0.08) and the Group Environment and Evolution Collaboration (GEEC; at z ~ 0.4). Using UV imaging from the GALEX…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Sean L. McGee , Michael L. Balogh , David J. Wilman , Richard G. Bower , John S. Mulchaey , Laura C. Parker , Augustus Oemler

We present the stellar mass functions (SMFs) of star-forming and quiescent galaxies from observations of 10 rich clusters in the Gemini Cluster Astrophysics Spectroscopic Survey (GCLASS) in the redshift range 0.86<z<1.34. We compare our…

While the star formation rates and morphologies of galaxies have long been known to correlate with their local environment, the process by which these correlations are generated is not well understood. Galaxy groups are thought to play an…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Matthew R. George , Chung-Pei Ma , Kevin Bundy , Alexie Leauthaud , Jeremy Tinker , Risa H. Wechsler , Alexis Finoguenov , Benedetta Vulcani

We investigate the environmental dependence of galaxies with star formation from a volume-limited sample of 4782 nearby field galaxy spectra extracted from the 2dF Galaxy Redshift Survey final data release. The environment is characterized…

Astrophysics · Physics 2009-11-10 Abilio Mateus , Laerte Sodre

Using data from four deep fields (COSMOS, AEGIS, ECDFS, and CDFN), we study the correlation between the position of galaxies in the star formation rate (SFR) versus stellar mass plane and local environment at $z<1.1$. To accurately estimate…

We measure the environmental dependence, where environment is defined by the distance to the third nearest neighbor, of multiple galaxy properties inside the Environmental COntext (ECO) catalog. We focus primarily on void galaxies, which we…

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

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

Understanding the processes that transform star-forming galaxies into quiescent ones is key to unraveling the role of environment in galaxy evolution. We present measurements of the luminosity functions (LFs) and stellar mass functions…

The mechanisms that bring galaxies to strongly reduce their star formation activity (star-formation quenching) is still poorly understood. To better study galaxy evolution, we propose a classification based on the maps of the ionised…

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…

Astrophysics · Physics 2009-11-11 G. Sorrentino , V. Antonuccio-Delogu , A. Rifatto

We have investigated the effect of group environment on residual star formation in galaxies, using Galex NUV galaxy photometry with the SDSS group catalogue of Yang et al. (2007). We compared the (NUV $- r$) colours of grouped and…

Astrophysics of Galaxies · Physics 2016-09-21 Jacob P. Crossett , Kevin A. Pimbblet , D. Heath Jones , Michael J. I. Brown , John P. Stott

We investigate the role that dense environments have on the quenching of star formation and the transformation of morphology for a sample of galaxies selected from the Sloan Digital Sky Survey. We make a distinction between galaxies falling…

Astrophysics of Galaxies · Physics 2026-02-24 M. Oxland , L. C. Parker , R. R. de Carvalho , V. M. Sampaio