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Related papers: Evolution and environment of early-type galaxies

200 papers

We study the morphological content of a large sample of high-redshift clusters to determine its dependence on cluster mass and redshift. Quantitative morphologies are based on bulge+disk decompositions of cluster and field galaxies on deep…

We measure the morphology-density relation of galaxies at z=1 across the full three orders of magnitude in projected galaxy density available in low-redshift studies. Our study adopts techniques that are comparable with those applied at…

Astrophysics · Physics 2010-04-06 Graham P. Smith , Tommaso Treu , Richard S. Ellis , Sean M. Moran , Alan Dressler

We analyse the observed correlation between galaxy environment and H-alpha emission line strength, using volume-limited samples and group catalogues of 24968 galaxies drawn from the 2dF Galaxy Redshift Survey (Mb<-19.5) and the Sloan…

We explore how the star formation and metal enrichment histories of present-day galaxies have been affected by environment combining stellar population parameter estimates and group environment characterization for SDSS DR7. We compare…

Astrophysics of Galaxies · Physics 2021-02-10 Anna R. Gallazzi , Anna Pasquali , Stefano Zibetti , Francesco La Barbera

Elliptical and S0 galaxies dominate the galaxy population in nearby rich clusters such as Coma. Studies of the evolution of the colors, M/L ratios, and line indices of early-type galaxies indicate that they have been a highly homogeneous,…

Astrophysics · Physics 2007-05-23 Pieter G. van Dokkum

We study stellar population parameters of a sample of 13 dwarf galaxies located in poor groups of galaxies using high resolution spectra observed with VIMOS at the ESO-VLT. LICK-indices were compared with Simple Stellar Population models to…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 R. Grützbauch , F. Annibali , R. Rampazzo , A. Bressan , W. W. Zeilinger

Galaxy environment is frequently discussed, but inconsistently defined. It is especially difficult to measure at high redshift where only photometric redshifts are available. With a focus on early forming proto-clusters, we use a…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Genevieve M. Shattow , Darren J. Croton , Ramin A. Skibba , Stuart I. Muldrew , Frazer R. Pearce , Ummi Abbas

Early-type galaxies provide unique tests for the predictions of the cold dark matter cosmology and the baryonic physics assumptions entering models for galaxy formation. In this work, we use the Illustris simulation to study correlations of…

(Abridged) We explore the evolution of field early-type galaxies on a sample extracted from GOODS/CDFS. The galaxies are selected by means of a non-parametric analysis followed by visual inspection. We exclude those galaxies which are not…

Astrophysics · Physics 2009-11-10 I. Ferreras , T. Lisker , C. M. Carollo , S. J. Lilly , B. Mobasher , .

We present a study of the environment of barred galaxies using galaxies drawn from the SDSS. We use several different statistics to quantify the environment: the projected two-point cross-correlation function, the background-subtracted…

Astrophysics of Galaxies · Physics 2016-06-29 Bernardo Cervantes Sodi , Cheng Li , Changbom Park , Lixin Wang

We investigate the relationship between environment and galaxy evolution in the redshift range $0.5 < z < 1.0$. Galaxy overdensities are selected using a Friends-of-Friends algorithm, applied to deep photometric data in the Ultra-Deep…

Most gravitational lens galaxies are early-type galaxies in relatively low density environments. We show that they lie on the same fundamental plane as early-type galaxies in both local and distant rich clusters. Their surface brightness…

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 use a purely data-driven rectified factor analysis to identify early-type galaxies with recent star formation in DR4 of the SDSS Spectroscopic Catalogue. We compare the spectra and environment of these galaxies with `normal' early-types,…

Astrophysics · Physics 2009-11-11 Louisa A. Nolan , Somak Raychaudhury , Ata Kaban

We use very high-S/N stacked spectra of $\sim$29,000 nearby quiescent early-type galaxies (ETGs) from the Sloan Digital Sky Survey (SDSS) to investigate variations in their star formation histories (SFHs) with environment at fixed position…

Astrophysics of Galaxies · Physics 2015-06-19 Patrick J. Fitzpatrick , Genevieve J. Graves

We investigate the star formation histories (SFHs) of 983 early-type dwarf galaxies classified into five morphological subtypes, dS0, dE, dEbc, dSph, and dEbl,across six environments ranging from the field to rich clusters such as Ursa…

Astrophysics of Galaxies · Physics 2025-07-15 Hong Bae Ann , Mira Seo , Myoungwon Jeon

We report on the evolution of the number density and size of early-type galaxies from z~2 to z~0. We select a sample of 563 massive (M>10^{10} Msun), passively evolving (SSFR<10^{-2} Gyr^{-1}) and morphologically spheroidal galaxies at…

We study the Fundamental Plane of field early-type galaxies at intermediate redshift, using HST WFPC2 observations and deep Keck spectroscopy. Structural parameters and internal velocity dispersions are measured for eighteen galaxies at…

Astrophysics · Physics 2009-11-06 Pieter G. van Dokkum , Marijn Franx , Daniel D. Kelson , Garth D. Illingworth

In order to assess whether the environment has a significant effect on galaxy sizes, we compare the mass--size relations of cluster and field galaxies in the $0.4 < z < 0.8$ redshift range from the ESO Distant Cluster Survey (EDisCS) using…

We present the Fundamental Plane (FP) of field early-type galaxies at 0.5<z<1.0. Our project is a continuation of our efforts to understand the formation and evolution of early-type galaxies in different environments. The target galaxies…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Alexander Fritz , Inger Jorgensen , Ricardo P. Schiavon