English
Related papers

Related papers: The Evolution of Galaxies in Compact Groups

200 papers

We obtain total galaxy X-ray luminosities, $L_X$, originating from individually detected point sources in a sample of 47 galaxies in 15 compact groups of galaxies (CGs). For the great majority of our galaxies, we find that the detected…

Post-starburst galaxies are in the transitional stage between blue, star-forming galaxies and red, quiescent galaxies, and therefore hold important clues for our understanding of galaxy evolution. In this paper, we systematically searched…

Astrophysics of Galaxies · Physics 2017-02-15 Petchara Pattarakijwanich , Michael A. Strauss , Shirley Ho , Nicholas P. Ross

We have studied the evolution in the morphologies, sizes, stellar-masses, colors, and internal color dispersion (ICD) of galaxies at z=1 and 2.3, using a near-IR, flux-limited catalog for the HDF-N. At z=1 most luminous galaxies have…

Star formation in starbursts appears to be biased toward compact clusters, with up to 20% of all stars formed in them. Observations with HST show that many of these clusters have luminosities (-9 > Mv > -16), UBVI colors, and half-light…

Astrophysics · Physics 2007-05-23 Francois Schweizer

This is the first of a series of papers devoted to the investigation of a large sample of brightest cluster galaxies (BCGs), their kinematic and stellar population properties, and the relationships between those and the properties of the…

Astrophysics · Physics 2009-11-13 S. I. Loubser , A. E. Sansom , P. Sanchez-Blazquez , I. K. Soechting , G. E. Bromage

Optically-compact star-forming galaxies (SFGs) have been proposed as immediate progenitors of quiescent galaxies, although their origin and nature are debated. Were they formed in slow secular processes or in rapid merger-driven starbursts?…

We use semi-analytic techniques to study the formation and evolution of brightest cluster galaxies (BCGs). We show the extreme hierarchical nature of these objects and discuss the limits of simple ways to capture their evolution. In a model…

Astrophysics · Physics 2008-11-26 Gabriella De Lucia , Jeremy Blaizot

We use a mock galaxy catalogue based upon the Millennium Run simulation to investigate the intrinsic spatial properties of compact groups of galaxies. We find that approximately 30% of galaxy associations identified in our mock catalogue…

Astrophysics · Physics 2009-11-13 Alan W. McConnachie , Sara L. Ellison , David R. Patton

We study the neutral hydrogen properties of a sample of 20 bulgeless disk galaxies (Sd - Sdm Hubble types), an interesting class that can be used to constrain galaxy formation and evolution, especially the role of mergers versus internal…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Linda C. Watson , Eva Schinnerer , Paul Martini , Torsten Boeker , Ute Lisenfeld

Disc galaxies exhibit radial metallicity gradients in both their stellar and gaseous components. The star-forming gas (SFG) in HII regions and young stars (YSs) trace the recent evolutionary history of the galaxy. We aim to assess the…

Astrophysics of Galaxies · Physics 2026-03-23 Isha Shailesh , Patricia B. Tissera , Emanuel Sillero

We investigate the kinematic properties of nine nearby early-type galaxies with evidence of a disk-like component. Three of these galaxies are located in the field, five in the group and only one in the cluster environment. By combining the…

Astrophysics of Galaxies · Physics 2021-04-14 A. Dolfi , D. A. Forbes , W. J. Couch , K. Bekki , A. Ferré-Mateu , A. J. Romanowsky , J. P. Brodie

We construct a sample of 75,863 star forming galaxies with robust metallicity and star formation rate measurements from the Sloan Digital Sky Survey Data Release 7 (SDSS DR7), from which we select a clean sample of compact group (CG)…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Jillian M. Scudder , Sara L. Ellison , J. Trevor Mendel

Massive early-type galaxies (ETGs) are thought to form in two phases: an initial phase of rapid star formation and a later phase of mergers. A small fraction of these galaxies, called red nuggets, formed during the first phase may have…

Astrophysics of Galaxies · Physics 2025-06-18 Ling Zhu , Ana L. Chies-Santos , Micheli Trindade Moura , Hanjing Shi

A recent paper (Burke, Collins & Mann 2000) presents the analysis of the K-band Hubble diagram of 76 brightest cluster galaxies (BCGs) in X-ray clusters and shows that the properties of BCGs depend on the X-ray luminosity (Lx) of their host…

Astrophysics · Physics 2009-11-07 Sarah Brough , Chris Collins , Doug Burke , Bob Mann , Paul Lynam

We report a list of groups consisting of dwarf galaxies only. The sample contains 126 objects, mainly combined in pairs. The most populated group contains six dwarf galaxies. The majority of systems considered reside in the low-density…

Cosmology and Nongalactic Astrophysics · Physics 2012-04-26 D. I. Makarov , R. I. Uklein

We study the star formation activity of nearby galaxies with bars using a sample of late-type galaxies at 0.02$\leq z \leq$ 0.05489 and $M_r <-19.5$ from the Sloan Digital Sky Survey. We compare the physical properties of strongly and…

Astrophysics of Galaxies · Physics 2017-08-30 Eunbin Kim , Ho Seong Hwang , Haeun Chung , Gwang-Ho Lee , Changbom Park , Bernardo Cervantes Sodi , Sungsoo S. Kim

This work is dedicated to investigation of galaxies that do not fit into a common scenario of galaxy formation - isolated lenticular galaxies. We have studied stellar populations and ionized gas content of a sample of 22 lenticular galaxies…

Astrophysics of Galaxies · Physics 2014-03-18 Ivan Yu. Katkov

Hickson Compact Group (HCG) 16 is a prototypical compact group of galaxies, apparently in an intermediate stage of evolution, where its galaxies are losing gas to the intra-group medium (IGrM). The wide variety of ongoing process in HCG 16…

[Abridged] Compact groups (CGs) of galaxies have proven to be unique environments for studying galaxy interactions. We propose a detailed analysis of the galaxy evolution to disentangle the relationship between the two first-ranked galaxies…

Astrophysics of Galaxies · Physics 2025-04-30 A. Zandivarez , E. Diaz-Gimenez

A summary of mid-infrared continuum luminosities arising from dust is given for very luminous galaxies, Lir > 10^12 solar luminosities, with 0.005 < z < 3.2 containing active galactic nuclei (AGN), including 115 obscured AGN and 60…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-11 Daniel W. Weedman , James R. Houck
‹ Prev 1 4 5 6 7 8 10 Next ›