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We present detailed morphological, photometric, and stellar-kinematic analyses of the central regions of two massive, early-type barred galaxies with nearly identical large-scale morphologies. Both have large, strong bars with prominent…

A dataset of 23,351 globular clusters (GCs) and ultra-compact dwarfs (UCDs) in the Coma cluster of galaxies was built using Hubble Space Telescope Advanced Camera for Surveys data. Based on the standard magnitude cut of $M_V \leq -11$, a…

Astrophysics of Galaxies · Physics 2025-07-22 Richard T. Pomeroy , Juan P. Madrid , Conor R. O'Neill , Alexander T. Gagliano

We present a study of the bar fraction in the Coma cluster galaxies based on a sample of $\sim 190$ galaxies selected from the Sloan Digital Sky Survey Data Release 6 (SDSS-DR6) and observed with the Hubble Space Telescope (HST) Advanced…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 J. Mendez-Abreu , R. Sanchez-Janssen , J. A. L. Aguerri

The exponential profile has long been hypothesized as the fundamental morphology of galactic disks. The IllustrisTNG simulations reproduce diverse surface-density profiles: Type I (single exponential), Type II (down-bending), and Type III…

Astrophysics of Galaxies · Physics 2026-04-30 Liufei Chen , Min Du , Shuai Lu , Jing Li , Luis C. Ho

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

A panchromatic investigation of morphology for the early-type spiral galaxy M81 is presented in this paper. We perform bulge-disk decomposition in M81 images at a total of 20 wavebands from FUV to NIR obtained with GALEX, Swift, SDSS, WIYN,…

Astrophysics of Galaxies · Physics 2023-07-26 Jun-Yu Gong , Ye-Wei Mao , Hua Gao , Si-Yue Yu

We report on a search for faint (R total magnitude fainter than 21) and low surface brightness galaxies (R central surface brightness fainter than ~24) (fLSBs) in a 0.72x0.82 deg2 area centered on the Coma cluster. We analyzed deep B and R…

(Abridged) We present a detailed analysis of the morphology, isophotal parameters and surface brightness profiles for 100 early-type members of the Virgo Cluster, from dwarfs (M_B = -15.1 mag) to giants (M_B = -21.8 mag). Each galaxy has…

The K-band light-profiles from two statistically complete, diameter-limited samples of disk galaxies have been simultaneously modelled with a seeing-convolved Sersic r^{1/n} bulge and a seeing-convolved exponential disk. This has enabled an…

Astrophysics · Physics 2009-11-06 Alister W. Graham

We present a detailed analysis of the global and fine structure of four middle-mass disc galaxies obtained from simulations in a $\Lambda$CDM scenario. These objects have photometric D/T ratios in good agreement with those observed for…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Mariola Doménech-Moral , Francisco J. Martínez-Serrano , Rosa Domínguez-Tenreiro , Arturo Serna

We present single-S\'ersic two-dimensional model fits to 167,600 galaxies modelled independently in the ugrizYJHK bandpasses using reprocessed Sloan Digital Sky Survey Data Release Seven (SDSS DR7) and UKIRT Infrared Deep Sky Survey Large…

(Abridged) The structural parameters of a magnitude-limited sample of 148 unbarred S0-Sb galaxies were analyzed to derive the intrinsic shape of their bulges. We developed a new method to derive the intrinsic shape of bulges based on the…

Cosmology and Nongalactic Astrophysics · Physics 2019-08-19 J. Mendez-Abreu , E. Simonneau , J. A. L. Aguerri , E. M. Corsini

As a demonstration of the capabilities of the new Oxford SWIFT integral field spectrograph, we present first observations for a set of 14 early-type galaxies in the core of the Coma cluster. Our data consist of I- and z-band spatially…

Cosmology and Nongalactic Astrophysics · Physics 2012-08-29 Nicholas Scott , Ryan C. W. Houghton , Roger L. Davies , Michele Cappellari , Niranjan Thatte , Fraser J. Clarke , Matthias Tecza

Recent deep Hubble Space Telescope WFC3 imaging suggests that a majority of compact quiescent massive galaxies at z~2 may contain disks. To investigate this claim, we have compared the ellipticity distribution of 31 carefully selected…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 M. Chevance , A. Weijmans , I. Damjanov , R. G. Abraham , L. Simard , S. van den Bergh , E. Caris , K. Glazebrook

We examine resolved spectroscopic data obtained with the Keck II telescope for 44 spheroidal galaxies in the fields of two rich clusters, Cl0024+16 (z=0.40) and MS0451-03 (z=0.54), and contrast this with similar data for 23 galaxies within…

(Abridged) A robust analysis of galaxy structural parameters, based on the modeling of bulge and disk brightnesses in the BVRH bandpasses, is presented for 121 face-on and moderately inclined late-type spirals. Each surface brightness (SB)…

Astrophysics · Physics 2010-04-06 Lauren A. MacArthur , Stephane Courteau , Jon A. Holtzman

By combining surface brightness profiles from images taken in the HST/NICMOS F160W and ground-based (GB) $K$ bands, we have obtained NIR profiles for a well studied sample of inclined disk galaxies, spanning radial ranges from 20 pc to a…

Astrophysics · Physics 2007-05-23 M. Balcells , L. Dominguez-Palmero , A. Graham , R. F. Peletier

We present long slit spectra and multi-color CCD images which demonstrate that the strong star formation episodes that occurred in the post-starburst galaxies in the Coma Cluster and two field galaxies were not restricted to the central…

Astrophysics · Physics 2009-10-28 Nelson Caldwell , James Rose , Marijn Franx , Andrew Leonardi

(Abridged) We determine the quantitative morphology and star formation properties of galaxies in six nearby X-ray detected, poor groups using multi-object spectroscopy and wide-field R imaging. We measure structural parameters for each…

Astrophysics · Physics 2009-10-31 Kim-Vy H. Tran , Luc Simard , Ann I. Zabludoff , John S. Mulchaey

We present a preliminary study exploring whether the stellar orbital circularity of simulated galaxies, available from precomputed catalogs in the IllustrisTNG project, can be used as a proxy for broad morphological classification. We focus…

Astrophysics of Galaxies · Physics 2025-06-26 Katarina Baucalo , Ana Mitrašinović