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We report the analysis of HST WFPC2 F606W images of 40 spirals belonging to the sample introduced in Carollo et al. (paper I), where 35 other targets were discussed. We describe the optical morphology of the new 40 galaxies, derive the…

Astrophysics · Physics 2009-10-30 C. M. Carollo , M. Stiavelli , J. Mack

We examine a sample of 1495 galaxies in the CANDELS fields to determine the evolution of two component galaxies, including bulges and discs, within massive galaxies at the epoch 1 < z < 3 when the Hubble sequence forms. We fit all of our…

We present a detailed morphological, photometric, and kinematic analysis of two barred S0 galaxies with large, luminous inner disks inside their bars. We show that these structures, in addition to being geometrically disk-like, have…

Astrophysics · Physics 2009-11-10 Peter Erwin , Juan Carlos Vega Beltran , Alister W. Graham , John E. Beckman

Characterizing and accurately decomposing galaxies into structural components, such as bulges and disks, is essential for understanding galaxy formation and evolution, particularly at high redshift, where galaxies are compact and faint.…

Astrophysics of Galaxies · Physics 2025-06-24 Zhengxin Tang , Xuheng Ding , Boris S. Kalita , Lilan Yang

We have assembled a large data-set of 613 galaxy redshifts in the Coma cluster, the largest presently available for a cluster of galaxies. We have defined a sample of cluster members complete to b$_{26.5}=20.0$, using a membership criterion…

Astrophysics · Physics 2007-05-23 A. Biviano , F. Durret , D. Gerbal , O. LeFevre , C. Lobo , A. Mazure , E. Slezak

We present a catalogue of low surface brightness (LSB) galaxies in the Coma cluster obtained from deep Subaru/Suprime-Cam V and R-band imaging data within a region of $\sim$4 deg$^2$. We increase the number of LSB galaxies presented in Yagi…

Astrophysics of Galaxies · Physics 2020-06-18 Adebusola B. Alabi , Aaron J. Romanowsky , Duncan A. Forbes , Jean P. Brodie , Nobuhiro Okabe

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

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…

HST WFPC2 images in B (F450W) and I (F814W) have been obtained for three starburst (SB) and two post-starburst (PSB) galaxies in the Coma cluster, and for three such galaxies in the cluster DC2048-52. V (F555W) and I images for an…

Astrophysics · Physics 2009-10-30 Nelson Caldwell , Jim Rose , Kristi Dendy

We discuss SAURON absorption line strength maps of a sample of 24 early-type spirals, mostly Sa. From the Lick indices H$\beta$, Mg b and Fe 5015 we derive SSP-ages and metallicities. By comparing the scaling relations of Mg b and H beta…

The role of the environment on the formation of S0 galaxies is still not well understood, specifically in the outskirts of galaxy clusters. We study eight low-redshift clusters, analyzing galaxy members up to cluster-centric distances…

Astrophysics of Galaxies · Physics 2021-04-21 S. Barsanti , M. S. Owers , R. M. McDermid , K. Bekki , J. J. Bryant , S. M. Croom , S. Oh , A. S. G. Robotham , N. Scott , J. van de Sande

A new method for spectroscopic bulge-disc decomposition is presented, in which the spatial light profile in a two-dimensional spectrum is decomposed wavelength-by-wavelength into bulge and disc components, allowing separate one-dimensional…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 E. J. Johnston , A. Aragón-Salamanca , M. R. Merrifield , A. G. Bedregal

The fraction of star-forming to quiescent dwarf galaxies varies from almost infinity in the field to zero in the centers of rich galaxy clusters. What is causing this pronounced morphology-density relation? What do quiescent dwarf galaxies…

Using imaging data from the SDSS survey, we present the g' and r' radial stellar light distribution of a complete sample of ~90 face-on to intermediate inclined, nearby, late-type (Sb-Sdm) spiral galaxies. The surface brightness profiles…

Astrophysics · Physics 2009-11-11 M. Pohlen , I. Trujillo

We present the results of an isophotal shape analysis of three samples of galaxies in the Coma cluster. Quantitative morphology, together with structural and photometric parameters, is given for each galaxy. Special emphasis has been placed…

Astrophysics · Physics 2007-05-23 S. Andreon , E. Davoust , R. Michard , J. -L. Nieto , P. Poulain

The HST ACS Coma Cluster Treasury Survey is a deep two passband imaging survey of the nearest very rich cluster of galaxies, covering a range of galaxy density environments. The imaging is complemented by a recent wide field redshift survey…

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…

This study uses r-band images from the Eighth Data Release of the Sloan Digital Sky Survey (SDSS DR8) to study bars in lenticular (S0) galaxies in one of the nearest rich cluster environments, the Coma cluster. We develop techniques for bar…

Astrophysics of Galaxies · Physics 2015-06-18 George B. Lansbury , John R. Lucey , Russell J. Smith

We present an application of a new set of detailed, self-consistent, dynamical models for disc galaxies. We start from the hypothesis that each galaxy can be decomposed in a bulge, following the r^{1/4} law, and a disc with an exponential…

Astrophysics · Physics 2007-05-23 E. Pignatelli

We present a multi-wavelength analysis of the galaxies in nine clusters selected from the WINGS dataset, examining how galaxy structure varies as a function of wavelength and environment using the state of the art software GALAPAGOSII. We…

Astrophysics of Galaxies · Physics 2020-01-29 A. Psychogyios , M. Vika , V. Charmandaris , S. Bamford , G. Fasano , B. Häußler , A. Moretti , B. Poggianti , B. Vulcani