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Important but rare and subtle processes driving galaxy morphology and star-formation may be missed by traditional spiral, elliptical, irregular or S\'ersic bulge/disk classifications. To overcome this limitation, we use a principal…

We present azimuthally averaged radial profiles of R-band surface brightness for a complete sample of 47 early-type, unbarred galaxies, as a complement to our previous study of early-type barred galaxies. Following very careful sky…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Leonel Gutierrez , Peter Erwin , Rebeca Aladro , John E. Beckman

We analyze the global structure of 34 late-type, edge-on, undisturbed, disk galaxies spanning a wide range of mass. We measure structural parameters for the galaxies using two-dimensional least-squares fitting to our $R$-band photometry.…

Astrophysics · Physics 2008-11-26 Peter Yoachim , Julianne J. Dalcanton

From a purely photometric perspective galaxies are generally decomposed into a bulge+disc system, with bulges being dispersion-dominated and discs rotationally-supported. However, recent observations have demonstrated that such a framework…

Astrophysics of Galaxies · Physics 2024-01-10 Fabio Rigamonti , Massimo Dotti , Stefano Covino , Francesco Haardt , Luca Cortese , Marco Landoni , Ludovica Varisco

We explore stellar population properties separately in the bulge and the disk of double-component cluster galaxies to shed light on the formation of lenticular galaxies in dense environments. We study eight low-redshift clusters from the…

We present a quantitative morphological analysis of 187 galaxies in a region covering the central 0.28 square degrees of the Coma cluster. Structural parameters from the best-fitting Sersic r^{1/n} bulge plus, where appropriate, exponential…

Astrophysics · Physics 2009-11-10 C. M. Gutierrez , I. Trujillo , J. A. L. Aguerri , A. W. Graham , N. Caon

From mock Hubble Space Telescope images, we quantify non-parametric statistics of galaxy morphology, thereby predicting the emergence of relationships among stellar mass, star formation, and observed rest-frame optical structure at 1 < z <…

We present $K'$-band surface photometry of a sample of 31 inclined Sa-Scd galaxies, together with additional $J$- and $H$-band data for four of them. In this first paper of a series, profiles are presented, together with global and…

Astrophysics · Physics 2007-05-23 Ph. Heraudeau , F. Simien , G. A. Mamon

We present near-infrared H-band (1.65micron) observations and surface brightness profile decompositions for 75 faint (13.5 < m_p < 18.5) galaxies, primarily taken among dwarf Ellipticals members of the Virgo cluster. We model their surface…

Astrophysics · Physics 2009-11-06 G. Gavazzi , S. Zibetti , A. Boselli , P. Franzetti , M. Scodeggio , S. Martocchi

Bulge-disc decomposition is a valuable tool for understanding galaxies. However, achieving robust measurements of component properties is difficult, even with high quality imaging, and it becomes even more so with the imaging typical of…

Astrophysics of Galaxies · Physics 2015-06-22 Marina Vika , Steven P. Bamford , Boris Häußler , Alex L. Rojas

Kn-band imaging of a sample of 30 edge-on spiral galaxies with a boxy or peanut-shaped (B/PS) bulge is discussed. Galaxies with a B/PS bulge tend to have a more complex morphology than galaxies with other bulge types, unsharp-masked images…

Astrophysics · Physics 2007-05-23 M. Bureau , G. Aronica , E. Athanassoula

We derive the disk masses of 18 spiral galaxies of different luminosity and Hubble Type, both by mass modelling their rotation curves and by fitting their SED with spectro-photometric models. The good agreement of the estimates obtained…

Astrophysics · Physics 2009-11-13 Paolo Salucci , Irina A. Yegorova , Niv Drory

The surface-brightness profiles of galaxy disks fall into three main classes, based on whether they are simple exponentials (Type I), bend down at large radii (Type II, "truncations") or bend up at large radii (Type III, "antitruncations").…

Astrophysics · Physics 2007-12-11 Peter Erwin , Michael Pohlen , Leonel Gutierrez , John E. Beckman

We present OGLE-III Photometric Maps of the Galactic disk fields observed during the OGLE-III campaigns for low luminosity transiting objects that led to the discovery of the first transiting exoplanets. The maps contain precise, calibrated…

Solar and Stellar Astrophysics · Physics 2011-01-11 M. K. Szymański , A. Udalski , I. Soszyński , M. Kubiak , G. Pietrzyński , R. Poleski , Ł. Wyrzykowski , K. Ulaczyk

We present a multi-component structural analysis of the internal structure of $1074$ high redshift massive galaxies at $1<z<3$ from the CANDELS HST Survey. In particular we examine galaxies best-fit by two structural components, and thus…

We present ultraviolet through far-infrared surface brightness profiles for the 75 galaxies in the Spitzer Infrared Nearby Galaxies Survey (SINGS). The imagery used to measure the profiles includes GALEX UV data, optical images from KPNO,…

(abridged) We present an analysis of B-R and R-K_s color maps for 47 late-type, edge-on, unwarped, bulgeless disk galaxies spanning a wide range of mass. The color maps show that the thin disks of these galaxies are embedded within a low…

Astrophysics · Physics 2009-08-17 Julianne J. Dalcanton , Rebecca A. Bernstein

In an earlier paper, we determined the morphological types of galaxies in the Coma Cluster using data from the HST/ACS Coma Cluster treasury survey. We found that of the 132 members, 51 are non dwarfs and 81 are dwarfs. We define dwarfs to…

Astrophysics of Galaxies · Physics 2024-05-21 Nagamani Poloji , Priya Hasan , S. N. Hasan

We propose a two dimensional galaxy fitting algorithm to extract parameters of the bulge, disk, and a central point source from broad band images of galaxies. We use a set of realistic galaxy parameters to construct a large number of model…

Astrophysics · Physics 2009-10-30 Yogesh Wadadekar , Braxton Robbason , Ajit Kembhavi

About 20% of low-redshift galaxies are late-type spirals with a small or no bulge component. Although they are the simplest disk galaxies in terms of structure and dynamics, the role of the different physical processes driving their…

Astrophysics of Galaxies · Physics 2017-05-10 L. Costantin , J. Méndez-Abreu , E. M. Corsini , L. Morelli , J. A. L. Aguerri , E. Dalla Bontà , A. Pizzella
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