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相关论文: Environmental Effects in the Structural Parameters…

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We present a quantitative morphological analysis of 187 galaxies in a region covering the central 0.28 square degrees of the Coma cluster. Structural parameters from the best-fitting Sersic r^{1/n} bulge plus, where appropriate, exponential…

天体物理学 · 物理学 2009-11-10 C. M. Gutierrez , I. Trujillo , J. A. L. Aguerri , A. W. Graham , N. Caon

We have looked for differences in the galaxy properties along the Hubble sequence and for the dependence of these properties on the environment, in an absolute magnitude complete sample of 187 galaxies in the Coma cluster. The morphological…

天体物理学 · 物理学 2007-05-23 Andreon Stefano

We explore the internal structure of red sequence galaxies in the Coma cluster across a wide range of luminosities ($-17>M_g>-22$) and cluster-centric radii ($0<r_{\rm{cluster}}<1.3 r_{200}$). We present the 2D bulge-disc decomposition of…

星系天体物理 · 物理学 2015-06-18 Jacob T. C. G. Head , John R. Lucey , Michael J. Hudson , Russell J. Smith

We use ACS data from the HST Treasury survey of the Coma cluster (z~0.02) to study the properties of barred galaxies in the Coma core, the densest environment in the nearby Universe. This study provides a complementary data point for…

We study the environmental dependence of color, stellar mass, and morphology by comparing galaxies in a forming cluster to those in the field at z = 1:6 with Hubble Space Telescope near-infrared imaging in the CANDELS/UDS field. We quantify…

We combine dissipationless N-body simulations and semi-analytic models of galaxy formation to study the spatial and kinematic distributions of cluster galaxies in a LCDM cosmology. We investigate how the star formation rates, colours and…

We investigated the typical environment and physical properties of "red discs" and "blue bulges", comparing those to the "normal" objects in the blue cloud and red sequence. Our sample is composed of cluster members and field galaxies at $z…

星系天体物理 · 物理学 2016-09-14 P. A. A. Lopes , S. B. Rembold , A. L. B. Ribeiro , R. S. Nascimento , B. Vajgel

Clusters of galaxies are often embedded in larger-scale superclusters with dimensions of tens or perhaps even hundreds of Mpc. Observational and theoretical evidence suggest an important connection between cluster properties and their…

天体物理学 · 物理学 2009-09-25 Michael J. West

Aims: Following the study already presented in our previous paper, based on the Nordic Optical Telescope (NOT) sample, which consists of five clusters of galaxies within the redshift range 0.18 $\leq$ z $\leq$ 0.25, imaged in the central…

宇宙学与河外天体物理 · 物理学 2015-05-13 B. Ascaso , J. A. L Aguerri , M. Moles , R. Sánchez-Janssen , D. Bettoni

When a galaxy falls into a cluster, its outermost parts are the most affected by the environment. In this paper, we are interested in studying the influence of a dense environment on different galaxy's components to better understand how…

We present optical and millimetric data for 47 intermediate Hubble type spiral galaxies located either in dense environments or in the field. We compare correlations between global parameters, such as far-infrared luminosity, blue…

天体物理学 · 物理学 2009-11-07 Duilia F. de Mello , Marcio A. G. Maia , Tommy Wiklind

(ABRIDGED) We use high resolution (~0.1") F814W ACS images from the HST ACS Treasury survey of the Coma cluster at z~0.02 to study bars in massive disk galaxies (S0s), and in dwarf galaxies in the Coma core. Our study helps constrain the…

We are able to extend the investigation of the color-morphology-density-radius relations, for bright and faint galaxies, to $R \gtrsim 3 \times R_{200}$ and to very low density regions, probing the transition region between cluster and…

宇宙学与河外天体物理 · 物理学 2013-12-04 P. A. A. Lopes , A. L. B. Ribeiro , S. B. Rembold

Recent observations of the Coma cluster of galaxies in its central region have provided approximately 250 new redshifts - allowing a good membership criterion to be established for brighter galaxies - and magnitudes for 8000 objects in the…

天体物理学 · 物理学 2007-05-23 F. Durret , A. Biviano , D. Gerbal , O. Le Fevre , C. Lobo , A. Mazure , E. Slezak

In this paper we present the structural properties and morphology of galaxies in the central region of the Coma Cluster brighter than $19.5^m$ in the $F814W$ band. from the HST/ACS Coma Cluster Treasury Survey. Using mainly spectroscopic…

星系天体物理 · 物理学 2021-12-08 P. Nagamani , P. Hasan , S N Hasan

We examine the changes in the properties of galactic bulges and discs with environment for a volume-limited sample of 12500 nearby galaxies from SDSS. We focus on galaxies with classical bulges. Classical bulges seem to have the same…

宇宙学与河外天体物理 · 物理学 2015-06-11 C. N. Lackner , J. E. Gunn

We report the discovery of 47 low surface brightness objects in deep images of a 3 x 3 degree field centered on the Coma cluster, obtained with the Dragonfly Telephoto Array. The objects have central surface brightness mu(g,0) ranging from…

星系天体物理 · 物理学 2015-06-23 Pieter van Dokkum , Roberto Abraham , Allison Merritt , Jielai Zhang , Marla Geha , Charlie Conroy

The large-scale distribution of globular clusters in the central region of the Coma cluster of galaxies is derived through the analysis of Hubble Space Telescope/Advanced Camera for Surveys data. Data from three different HST observing…

星系天体物理 · 物理学 2018-11-30 Juan P. Madrid , Conor R. O'Neill , Alexander T. Gagliano , Joshua R. Marvil

We present a study of the bar fraction in the Coma cluster galaxies based on a sample of $\sim 190$ galaxies selected from the Sloan Digital Sky Survey Data Release 6 (SDSS-DR6) and observed with the Hubble Space Telescope (HST) Advanced…

宇宙学与河外天体物理 · 物理学 2015-05-18 J. Mendez-Abreu , R. Sanchez-Janssen , J. A. L. Aguerri

We explore galaxy properties and their link with environment and clustering using a population of ~1000 galaxies formed in a high resolution hydrodynamic simulation of the Lambda CDM cosmology. At the redshift we concentrate on, z=1, the…

天体物理学 · 物理学 2015-05-13 Rupert A. C. Croft , Tiziana Di Matteo , Volker Springel , Lars Hernquist
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