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Related papers: Bright Compact Bulges (BCBs) at intermediate redsh…

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Based on our sample of 10095 galaxies with bulge-disc decompositions we derive the empirical B-band internal attenuation--inclination relation for galaxy discs and their associated central bulges. Our results agree well with the…

We investigate the stellar disk properties of a sample of 19 nearby spiral galaxies with low inclination and late Hubble type (Scd or later). We combine our high-resolution HST I-band observations with existing ground-based optical images…

Astrophysics · Physics 2009-11-07 Torsten Boeker , Rebecca Stanek , Roeland P. van der Marel

We study a large sample of 625 low-redshift brightest cluster galaxies (BCGs) and link their morphologies to their structural properties. We derive visual morphologies and find that ~57% of the BCGs are cD galaxies, ~13% are ellipticals,…

Astrophysics of Galaxies · Physics 2016-08-07 Dongyao Zhao , Alfonso Aragón-Salamanca , Christopher J. Conselice

We analyse the K-band Hubble diagram for a sample of brightest cluster galaxies (BCGs) in the redshift range 0<z<1. In good agreement with earlier studies, we confirm that the scatter in the absolute magnitudes of the galaxies is small (0.3…

Astrophysics · Physics 2009-10-30 A. Aragon-Salamanca , C. M. Baugh , G. Kauffmann

We present a sample of over 50 luminous field bulges (including ellipticals) found in the Groth Strip Survey (GSS), with 0.73< z < 1.04 and with bulge magnitudes I <= 23. The exponential disk light is removed via decomposition of HST images…

We examine the alignment between Brightest Cluster Galaxies (BCGs) and their host clusters in a sample of 7031 clusters with 0.08<z<0.44 found using a matched-filter algorithm and an independent sample of 5744 clusters with 0.1<z<0.3…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Martin Niederste-Ostholt , Michael A. Strauss , Feng Dong , Benjamin P. Koester , Timothy A. McKay

Recent reports suggest that elliptical galaxies have increased their size dramatically over the last ~8 Gyr. This result points to a major re-think of the processes dominating the latetime evolution of galaxies. In this paper we present the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 J. P. Stott , C. A. Collins , C. Burke , V. Hamilton-Morris , G. P. Smith

The K-band Hubble diagram for a sample of brightest cluster galaxies (BCGs) in the redshift range 0<z<1 shows a very small scatter (0.3 magnitudes r.m.s). The BCGs exhibit very little luminosity evolution in this redshift range: if q_0=0.0…

Astrophysics · Physics 2007-05-23 A. Aragon-Salamanca , C. M. Baugh , G. Kauffmann

Using a sample of 425 nearby Brightest Cluster Galaxies (BCGs) from von der Linden et al. (2007), we study the relationship between their internal properties (stellar masses, structural parameters and morphologies) and their environment.…

Astrophysics of Galaxies · Physics 2016-08-08 Dongyao Zhao , Alfonso Aragón-Salamanca , Christopher J. Conselice

We identify a sample of 1959 massive clusters of galaxies in the redshift range of 0.7<z<1.0 from the survey data of Sloan Digital Sky Survey (SDSS) and Wide-field Infrared Survey Explorer (WISE). These clusters are recognized as the…

Cosmology and Nongalactic Astrophysics · Physics 2018-09-26 Z. L. Wen , J. L. Han

We present evolutionary synthesis models for both components and add their spectra in various proportions to obtain the full range of local galaxies' B-band bulge-to-total light ratios. Bulge star formation is assumed to occur on a short…

Astrophysics · Physics 2009-11-07 Jochen Schulz , Uta Fritze-v. Alvensleben , Klaus J. Fricke

We study the statistical properties of 320 bulges of disk galaxies in the Carnegie-Irvine Galaxy Survey, using robust structural parameters of galaxies derived from image fitting. We apply the Kormendy relation to classify classical and…

Astrophysics of Galaxies · Physics 2020-02-28 Hua Gao , Luis C. Ho , Aaron J. Barth , Zhao-Yu Li

The numerous and massive young star clusters in blue compact galaxies (BCGs) are used to investigate the properties of their hosts. We test whether BCGs follow claimed relations between cluster populations and their hosts, such as the the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Angela Adamo , Goeran Ostlin , Erik Zackrisson

We study nine S0-Sb galaxies with (photometric) bulges consisting of two distinct components. The outer component is a flattened, kinematically cool, disklike structure: a "disky pseudobulge". Embedded inside is a rounder, kinematically hot…

We investigate scaling relations of bulges using bulge-disk decompositions at 3.6 micron and present bulge classifications for 173 E-Sd galaxies within 20 Mpc. Pseudobulges and classical bulges are identified using Sersic index, HST…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 David B. Fisher , Niv Drory

We present quantitative morphology measurements of a sample of optically selected group galaxies at 0.3 < z < 0.55 using the Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS) and the GIM2D surface brightness--fitting software…

Brightest cluster galaxies (BCGs) are very massive elliptical galaxies found at the centers of clusters. Their study gives clues on the formation and evolution of the clusters in which they are embedded. We analysed here in a homogeneous…

Astrophysics of Galaxies · Physics 2022-10-05 Aline Chu , Florian Sarron , Florence Durret , Isabel Márquez

It is an observational fact that bulges of spiral galaxies contain a high fraction of old and metal-rich stars. Following this observational fact, we have investigated colors of 21 bulges hosted by a selected sample of high surface…

Astrophysics · Physics 2008-11-26 Gaspar Galaz , Alvaro Villalobos , Leopoldo Infante , Carlos Donzelli

We have used the EFAR sample of galaxies to study the light distributions of early-type galaxies. We decompose the 2D light distribution of the galaxies in a flattened spheroidal component with a Sersic radial light profile and an inclined…

Dynamical searches find central dark objects - candidate supermassive black holes (BHs) - in at least 34 galaxies. The demographics of these objects lead to the following conclusions: (1) BH mass correlates with the luminosity of the bulge…

Astrophysics · Physics 2007-05-23 John Kormendy