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

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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…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 B. Ascaso , J. A. L Aguerri , M. Moles , R. Sánchez-Janssen , D. Bettoni

Recent observations with the James Webb Space Telescope (JWST) have begun to reveal a surprising morphological diversity in galaxies within the first billion years after the Big Bang, including indications of structural maturity previously…

Astrophysics of Galaxies · Physics 2025-10-30 Anshuman Borgohain , Kanak Saha

One of the most vital observational clues for unraveling the origin of Brightest Cluster Galaxies (BCG) is the observed alignment of the BCGs with their host cluster and its surroundings. We have examined the BCG-cluster alignment effect,…

We analyze 26 Luminous Compact Blue Galaxies (LCBGs) in the HST/ACS Ultra Deep Field (UDF) at z ~ 0.2-1.3, to determine whether these are truly small galaxies, or rather bright central starbursts within existing or forming large disk…

We have used the full radial extent of images from the Hubble Space Telescope's Advanced Camera for Surveys and Wide Field Planetary Camera 2 to extract surface brightness profiles from a sample of six, local lenticular galaxy candidates.…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Bililign T. Dullo , Alister W. Graham

It is well established that brightest cluster galaxies (BCGs), residing in the center of galaxy clusters, are typically massive and quenched galaxies with cD or elliptical morphology. An optical survey suggested that an exotic galaxy…

Recent studies have shown that massive quiescent galaxies at high redshift are much more compact than present-day galaxies of the same mass. Here we compare the radial stellar density profiles and the number density of a sample of massive…

Cosmology and Nongalactic Astrophysics · Physics 2010-01-15 Rachel Bezanson , Pieter G. van Dokkum , Tomer Tal , Danilo Marchesini , Mariska Kriek , Marijn Franx , Paolo Coppi

[Abridged] We present deep optical and near-infrared UBVRIHKs imaging data for 24 blue compact galaxies (BCGs). The sample contains luminous dwarf and intermediate-mass BCGs which are predominantly metal-poor, although a few have near-solar…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Genoveva Micheva , Göran Östlin , Nils Bergvall , Erik Zackrisson , Josefa Masegosa , Isabel Marquez , Thomas Marquart , Florence Durret

We study star formation rates (SFR) and stellar masses in bulges of nearby disk galaxies, using SFRs and stellar masses derived from Spitzer and GALEX data. At present day SFR the median pseudobulge could have grown the present day stellar…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-11 David B. Fisher , Niv Drory , Maximilian H. Fabricius

VLT spectra of 14 luminous compact galaxies (LCGs) reveal strong metallic absorption line sytems as well as narrow and intense emission lines. Their gas extinction is found to be large (Av ~ 1.5 mag) leading to an upward revision of their…

Astrophysics · Physics 2009-10-31 F. Hammer , N. Gruel , T. Thuan , H. Flores , L. Infante

We identify a population of Luminous Compact Blue Galaxies (LCBGs) in two galaxy clusters: MS0451.6-0305 (z=0.54) and Cl1604+4304 (z=0.9). LCBGs are identified via photometric characteristics and photometric redshifts derived from broad and…

Astrophysics · Physics 2009-11-13 S. M. Crawford , M. A. Bershady , A. D. Glenn , J. G. Hoessel

This thesis makes use of the imaging data from the Advanced Camera for Surveys (ACS) of the Hubble Space Telescope (HST) in the Cosmic Evolution Survey (COSMOS) and the Deep Extragalactic VIsible Legacy Survey (DEVILS) field. We provide…

Astrophysics of Galaxies · Physics 2022-03-18 Abdolhosein Hashemizadeh

We studied the morphology of galaxies in the Chandra Deep Field South using ACS multi-wavelength data from the Great Observatories Origin Deep Survey and 524 spectroscopic redshifts from the VIMOS VLT Deep Survey completed with 2874…

We present near-infrared K-band spectroscopy of 21 elliptical or cD Brightest Cluster Galaxies (BCGs), for which we have measured the strength of the 2.293 micron CO stellar absorption feature. We find that the strength of this feature is…

Astrophysics · Physics 2009-10-31 P. A. James , B. Mobasher

We study the internal structural properties of 37 long duration gamma-ray burst (GRB) host galaxies imaged with the Hubble Space Telescope. Fitting exponential disk and r^1/4 models to the surface brightness profiles of eight z < 1.2 bright…

Luminous compact blue galaxies (LCBGs) have enhanced star formation rates and compact morphologies. We combine Sloan Digital Sky Survey data with HI data of 29 LCBGs at redshift z~0 to understand their nature. We find that local LCBGs have…

Astrophysics of Galaxies · Physics 2015-07-15 C. A. Garland , D. J. Pisano , M. -M. Mac Low , K. Kreckel , K. Rabidoux , R. Guzmán

We explore the evolution of the stellar mass-size relation of galaxies of different morphological types and specifically bulge and disk components. We use a sample of $\sim35,000$ galaxies within a redshift range $0 < z < 1$, and stellar…

Astrophysics of Galaxies · Physics 2022-05-09 Abdolhosein Hashemizadeh

The global colors of galaxies have recently been shown to follow bimodal distributions. Galaxies separate into a ``red sequence'', populated prototypically by early-type galaxies, and a ``blue cloud'', whose typical objects are late-type…

Astrophysics · Physics 2009-06-23 Niv Drory , David B. Fisher

Brightest Cluster Galaxies (BCGs) are typically massive ellipticals at the centers of clusters. They are believed to experience strong environmental processing, and their mass assembly and star formation history are still debated. We have…

Astrophysics of Galaxies · Physics 2022-11-16 G. Castignani , M. Radovich , F. Combes , P. Salomé , M. Maturi , L. Moscardini , S. Bardelli , C. Giocoli , G. Lesci , F. Marulli , E. Puddu , M. Sereno

Massive galaxies at higher redshifts ($\emph{z}$ $>$ 2) show different characteristics from their local counterparts: They are compact and most likely have a disk. In this study, we trace the evolution of local massive galaxies by…

Astrophysics of Galaxies · Physics 2017-02-15 Roozbeh H. Davari , Luis C. Ho , Bahram Mobasher , Gabriela Canalizo