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相关论文: The Galaxy Population of Abell 1367: The Stellar M…

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Abell 1767 is a dynamically relaxed, cD cluster of galaxies with a redshift of 0.0703. Among 250 spectroscopically confirmed member galaxies within a projected radius of 2.5r_{200}, 243 galaxies (~ 97%) are spectroscopically covered by the…

星系天体物理 · 物理学 2015-11-11 Peng-Fei Yan , Feng Li , Qi-Rong Yuan

Photometric and spectroscopic observations of the galaxy population of the galaxy cluster Abell 1367 have been obtained, over a field of 34 by 90 arcmin, covering the cluster centre out to a radius of about 2.2 Mpc. U, B and R broad-band…

星系天体物理 · 物理学 2015-05-20 W. Kriwattanawong , C. Moss , P. A. James , D. Carter

Red sequence galaxies form with an intense burst of star formation in the early universe to evolve passively into massive, metal rich, old galaxies at z ~ 0. But Abell 1314 (z=0.034) is found to host almost all red sequence galaxy members…

星系天体物理 · 物理学 2014-10-13 Yuvraj Harsha Sreedhar

SUMMARIZED ABSTRACT: We present a study of the stellar populations and morphologies of galaxies in the core of the galaxy cluster Abell 2218. Integral field spectroscopy was obtained using PMAS/[email protected] CAHA to obtain a complete flux…

天体物理学 · 物理学 2008-11-26 S. F. Sanchez , N. Cardiel , M. Verheijen , S. Pedraz , G. Covone

(Abridged) We present morphological, photometric, kinematic and line-strength data of 48 early-type members of the rich cluster Abell 2218 at z=0.18. This sample is both larger and spans a wider galaxy luminosity range, down to M*_B+1, than…

天体物理学 · 物理学 2009-11-06 B. L. Ziegler , R. G. Bower , I. Smail , R. L. Davies , D. Lee

We present line strengths in the bulges and inner disks of 38 galaxies in the local universe, including several galaxies whose bulges were previously identified as being disk-like in their colors or kinematics, to see if their spectral…

天体物理学 · 物理学 2009-11-11 Bhasker K. Moorthy , Jon A. Holtzman

We present an analysis of the global stellar populations of galaxies in the SAMI Galaxy Survey. Our sample consists of 1319 galaxies spanning four orders of magnitude in stellar mass and includes all morphologies and environments. We derive…

We derive stellar metallicities, light-weighted ages and stellar masses for a magnitude-limited sample of 175,128 galaxies drawn from the Sloan Digital Sky Survey Data Release Two (SDSS DR2). We compute median-likelihood estimates of these…

天体物理学 · 物理学 2008-11-26 Anna Gallazzi , Stephane Charlot , Jarle Brinchmann , Simon D. M. White , Christy A. Tremonti

We present an unbiased method for evaluating the ranges of ages and metallicities which are allowed by the photometric properties of the stellar populations that dominate the light of early-type galaxies in clusters. The method is based on…

天体物理学 · 物理学 2009-10-30 I. Ferreras , S. Charlot , J. Silk

This is the second paper of a series devoted to study the stellar content of early-type galaxies. The goal of the series is to set constraints on the evolutionary status of these objects. We use a new set of models which include an improved…

天体物理学 · 物理学 2009-11-11 P. Sanchez-Blazquez , J. Gorgas , N. Cardiel , J. J. Gonzalez

We investigate the mass-metallicity relation for galaxies in the Abell cluster AC114 from 7 hours of VIMOS/MR data collected at the ESO-VLT telescope in 2009. The dynamical analysis completed in our previous paper allowed us to select…

星系天体物理 · 物理学 2023-10-06 Ivo Saviane , Irina Yegorova , Dominique Proust

We use high signal-to-noise spectroscopy for a sample of 232 quiescent galaxies in the Shapley Supercluster, to investigate how their stellar populations depend on velocity dispersion, luminosity and stellar mass. The sample spans a large…

宇宙学与河外天体物理 · 物理学 2015-05-14 Russell J. Smith , John R. Lucey , Michael J. Hudson

The degree of influence that environment and mass have on the stellar populations of early-type galaxies is uncertain. In this paper we present the results of a spectroscopic analysis of the stellar populations of early-type galaxies aimed…

宇宙学与河外天体物理 · 物理学 2015-05-20 Craig Harrison , Matthew Colless , Harald Kuntschner , Warrick Couch , Roberto De Propris , Michael Pracy

AIMS:The aim of this paper is to study the characteristics of the stellar populations and the metallicity distribution in the Galactic bulge. We study the entire stellar population, but also retrieve information using only the red clump…

星系天体物理 · 物理学 2023-07-19 E. Vanhollebeke , M. A. T. Groenewegen , L. Girardi

In integrated-light, some color-color diagrams that use optical and near-infrared photometry show surprisingly orthogonal grids as age and metallicity are varied, and they are coming into common usage for estimating the average age and…

天体物理学 · 物理学 2009-02-26 Hyun-chul Lee , Guy Worthey , Scott C. Trager , Sandra M. Faber

We present an analysis of the galaxy population of the intermediate X-ray luminosity galaxy cluster, Abell 1691, from SDSS and Galaxy Zoo data to elucidate the relationships between environment and galaxy stellar mass for a variety of…

宇宙学与河外天体物理 · 物理学 2015-06-11 Kevin A. Pimbblet , Peter C. Jensen

We present an analysis of the metallicity distribution functions of fields projected along the minor axis for a sample of inclined spiral galaxies in order to search for evidence of the presence of multiple stellar populations. In all…

天体物理学 · 物理学 2011-02-11 M. Mouhcine

We present an analysis of the stellar populations in a sample of ~7000 galaxies from the 6dF Galaxy Survey (6dFGS). We derive ages and metallicities using stellar population models. We also derive dynamical masses and dynamical…

天体物理学 · 物理学 2009-11-13 Robert N. Proctor , Philip Lah , Duncan A. Forbes , Matthew Colless , Warrick Couch

The distribution of galaxy properties in groups and clusters holds important information on galaxy evolution and growth of structure in the Universe. While clusters have received appreciable attention in this regard, the role of groups as…

宇宙学与河外天体物理 · 物理学 2015-05-13 J. Trevor Mendel , Robert N. Proctor , Jesper Rasmussen , Sarah Brough , Duncan A. Forbes

We present a dynamical analysis of the central ~1.3 square degrees of the cluster of galaxies Abell 1367, based on 273 redshift measurements (of which 119 are news). From the analysis of the 146 confirmed cluster members we derive a…

天体物理学 · 物理学 2009-11-10 L. Cortese , G. Gavazzi , A. Boselli , J. Iglesias-Paramo , L. Carrasco
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