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Luminous Compact Blue Galaxies (LCBGs) are an extreme star-bursting population of galaxies that were far more common at earlier epochs than today. Based on spectroscopic and photometric measurements of LCBGs in massive (M >10^15 M_sun),…

Astrophysics of Galaxies · Physics 2016-01-27 S. M. Crawford , Gregory D. Wirth , M. A. Bershady , S. M. Randriamampandry

We present an optical analysis of a sample of 11 clusters built from the EXCPRES sample of X-ray selected clusters at intermediate redshift (z ~ 0.5). With a careful selection of the background galaxies we provide the mass maps…

Cosmology and Nongalactic Astrophysics · Physics 2015-09-02 Genevieve Soucail , Gael Foex , Etienne Pointecouteau , Monique Arnaud , Marceau Limousin

We present a detailed study of the cluster CL 0048-2942, located at z~0.64, based on a photometric and spectroscopic catalogue of 54 galaxies in a 5 x 5 square arcmin region centred in that cluster. Of these, 23 galaxies were found to…

Astrophysics · Physics 2009-11-10 M. Serote Roos , C. Lobo , F. Durret , A. Iovino , I. Marquez

In this work, we investigate whether the location of galaxies within the large-scale structures (LSS) of the Universe affects their stellar mass ($M_\star$) and morphology. To this end, we attempt to disentangle the effects of local and…

Astrophysics of Galaxies · Physics 2026-05-05 G. Torres-Ríos , S. Verley , I. Pérez , M. Argudo-Fernández , B. Bidaran , S. Duarte Puertas , Y. K. González-Koda

In this first paper in a series we present a study of the global dust emission distribution in nearby edge-on spiral galaxies. Our sample consists of 16 angularly large and 13 less spatially resolved galaxies selected from the DustPedia…

We describe our project to examine the evolution of distant disk galaxies, and present the results of our work based on the Tully-Fisher relation. Comparing matched cluster and field samples we find evidence that the cluster galaxies are on…

Astrophysics · Physics 2015-06-24 S. P. Bamford , A. Aragon-Salamanca , B. Milvang-Jensen

Observations indicate that the disc population in galaxy clusters has undergone rapid evolution, transitioning from a dominance of blue spirals to red S0s over the past $\sim7$ Gyr. We build a simplified cluster evolutionary model in the…

Astrophysics of Galaxies · Physics 2026-03-25 A. Marasco , B. M. Poggianti , B. Vulcani , A. Moretti , M. Gullieuszik , J. Fritz

Using $JWST$/NIRCam data over a 0.28 deg$^{2}$ area from COSMOS-Web survey, together with $HST$/ACS data, we investigate early-type fraction of massive galaxies with $M_{star}>10^{10.5}M_{\odot}$ at $0.2<z<2.0$, and explore the formation of…

Astrophysics of Galaxies · Physics 2026-04-01 Masaru Kajisawa

We analyse the current build-up of stellar mass within the disks and bulges of nearby galaxies through a comparison of the spatial distributions of forming and old stellar populations. H alpha and R-band imaging are used to determine the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 P. A. James , C. F. Bretherton , J. H. Knapen

We present the stellar mass-size relations for elliptical, lenticular, and spiral galaxies in the field and cluster environments using HST/ACS imaging and data from the Space Telescope A901/2 Galaxy Evolution Survey (STAGES). We use a large…

We explore the possible effect of cluster environments on the structure and star formation histories of galaxies by analysing the projected phase-space (PPS) of intermediate-redshift cluster (0.4<z<0.8). HST I-band imaging data from the ESO…

Using data from four deep fields (COSMOS, AEGIS, ECDFS, and CDFN), we study the correlation between the position of galaxies in the star formation rate (SFR) versus stellar mass plane and local environment at $z<1.1$. To accurately estimate…

Increasingly large populations of disk galaxies are now being observed at increasingly high redshifts, providing new constraints on our knowledge of how such galaxies evolve. Are these observations consistent with a cosmology in which…

Astrophysics · Physics 2009-11-13 C. B. Brook , D. Kawata , H. Martel , B. K. Gibson , J. Bailin

Galaxy clusters have long been theorised to quench the star-formation of their members. This study uses integral-field unit observations from the $K$-band Multi-Object Spectrograph (KMOS) - Cluster Lensing And Supernova survey with Hubble…

The bimodality in galaxy properties has been observed at low and high redshift, with a clear distinction between star-forming galaxies in the blue cloud and passively evolving objects in the red sequence; the absence of galaxies with…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Thiago S. Gonçalves , D. Christopher Martin , Karín Menéndez-Delmestre , Ted Wyder , Anton Koekemoer

We aim to define a sample of intermediate-z disk galaxies harbouring central bulges, and a complementary sample of disk galaxies without measurable bulges. We intend to provide colour profiles for both samples, as well as measurements of…

We determine the intrinsic, 3-dimensional shape distribution of star-forming galaxies at 0<z<2.5, as inferred from their observed projected axis ratios. In the present-day universe star-forming galaxies of all masses 1e9 - 1e11 Msol are…

We consider a sample of 51 distant galaxy clusters at 0.15<z<0.9 (<z> about 0.3), each cluster having at least 10 galaxies with available redshift in the literature. We select member galaxies, analyze the velocity dispersion profiles, and…

Astrophysics · Physics 2009-10-31 M. Girardi , M. Mezzetti

We present a study on the clustering of a stellar mass selected sample of galaxies with stellar masses M*>10^10Msol at redshifts 0.4<z<2.0, taken from the Palomar Observatory Wide-field Infrared Survey. We examine the clustering properties…

Cosmology and Nongalactic Astrophysics · Physics 2016-11-25 Sebastien Foucaud , Christopher J. Conselice

I summarize what is know about the evolution of galaxies in clusters from the observational point of view presenting results at high (z~1), intermediate (z~0.5) and low (z~0) redshifts. I comment on the comparison between observations and…

Astrophysics · Physics 2007-05-23 B. M. Poggianti