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We present Johnson B surface photometry for the UCM Survey galaxies. One-dimensional bulge-disk decomposition is attempted, discussing on fitting functions and computational procedures. The results from this decomposition, jointly with…

Astrophysics · Physics 2009-10-31 P. G. Perez-Gonzalez , J. Gallego , J. Zamorano , A. Gil de Paz

The structural parameters of bulges, disks and bars of a sample of nearly 1000 nearby galaxies are being determined through sophisticated image decomposition in the g, r and i bands. The sample is carefully drawn from the Sloan Digital Sky…

Astrophysics · Physics 2009-11-13 Dimitri Gadotti , Guinevere Kauffmann

We present a non-parametric method for decomposition of the light of disk galaxies into disk, bulge and bar components. We have developed and tested the method on a sample of 68 disk galaxies for which we have acquired I-band photometry.…

Astrophysics · Physics 2008-11-26 A. S. Reese , T. B. Williams , J. A. Sellwood , Eric I. Barnes , Brian A. Powell

We present optical observations of a sample of 57 spiral galaxies and describe the procedures followed to reduce the data. We have obtained images in the optical B and I broad bands, as well as in H alpha, with moderate spatial resolution…

Astrophysics · Physics 2009-11-10 J. H. Knapen , S. Stedman , D. M. Bramich , S. L. Folkes , T. R. Bradley

We present deep B- and R-band surface photometry for a sample of 21 galaxies with morphological types between S0 and Sab. We present radial profiles of surface brightness, colour, ellipticity, position angle and deviations of axisymmetry…

Astrophysics · Physics 2008-11-26 E. Noordermeer , J. M. van der Hulst

We present griz and H-band surface brightness profiles and bulge-disk decompositions for a morphologically-broad sample of 286 Virgo cluster galaxies. The H-band data come from a variety of sources including our survey of 171 galaxies at…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Michael McDonald , Stephane Courteau , R. Brent Tully , Joel Roediger

Understanding how bulges grow in galaxies is critical step towards unveiling the link between galaxy morphology and star-formation. To do so, it is necessary to decompose large sample of galaxies at different epochs into their main…

Structural decomposition of galaxies into bulge, disk, and bar components is important to address a number of scientific problems. Measuring bulge, disk, and bar structural parameters will set constraints on the violent and secular…

Astrophysics · Physics 2008-02-28 Tim Weinzirl , Shardha Jogee , Fabio D. Barazza

We present near-infrared imaging of a sample of 57 relatively large, Northern spiral galaxies with low inclination. After describing the selection criteria and some of the basic properties of the sample, we give a detailed description of…

Astrophysics · Physics 2009-11-07 J. H. Knapen , R. S. de Jong , S. Stedman , D. M. Bramich

To ascertain whether photometric decompositions of galaxies into bulges and disks are astrophysically meaningful, we have developed a new technique to decompose spectral data cubes into separate bulge and disk components, subject only to…

The results of photometric decomposition of surface brightness distributions in 85 early-type unbarred galaxies are presented. The SDSS r-images are analysed. Double-tiered exponential disks are found in all galaxies which are studied; the…

Cosmology and Nongalactic Astrophysics · Physics 2010-12-08 Marina A. Ilyina , Olga K. Sil'chenko

(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 perform two-dimensional, Point-Spread-Function-convolved, bulge+disk decompositions in the $g$ and $r$ bandpasses on a sample of 1,123,718 galaxies from the Legacy area of the Sloan Digital Sky Survey Data Release Seven. Four different…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Luc Simard , J. Trevor Mendel , David R. Patton , Sara L. Ellison , Alan W. McConnachie

We have estimated the bulge-to-total ($B/T$) light ratios in the $K_s$-band for a sample of 24 S0, S0/a and Sa galaxies by applying a 2-dimensional multicomponent decomposition method. For the disk an exponential function is used, the…

Astrophysics · Physics 2009-11-13 Eija Laurikainen , Heikki Salo , Ronald Buta

We present BUDDA (BUlge/Disk Decomposition Analysis), a new code devoted to perform a two-dimensional bulge/disk decomposition directly from the images of galaxies. The bulge component is fitted with a generalized Sersic profile whereas…

Astrophysics · Physics 2009-11-10 R. E. de Souza , D. A. Gadotti , S. dos Anjos

In this paper I present a new two-dimensional decomposition technique, which models the surface photometry of a galaxy with an exponential light profile for both bulge and disk and, when necessary, with a Freeman bar. The new technique was…

Astrophysics · Physics 2007-05-23 Roelof S. de Jong

(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

(Abridged) A variety of formation scenarios was proposed to explain the diversity of properties observed in bulges. Studying their intrinsic shape can help in constraining the dominant mechanism at the epochs of their assembly. The…

Astrophysics · Physics 2015-05-13 J. Mendez-Abreu , J. A. L. Aguerri , E. M. Corsini , E. Simonneau

We present optical and near-infrared (NIR) surface brightness and colour profiles,in bands ranging from U to K, for the disk and bulge components of a complete sample of 30 nearby S0 to Sbc galaxies with inclinations larger than 50 degrees.…

Astrophysics · Physics 2009-10-30 R. F. Peletier , M. Balcells

By obtaining imaging data in two photometric bands for 60 lenticular galaxies - members of 8 southern clusters - with the Las Cumbres Observatory one-meter telescope network, we have analyzed the structure of their large-scale stellar…

Astrophysics of Galaxies · Physics 2018-09-19 Olga K. Sil'chenko , Alexei Yu. Kniazev , Ekaterina M. Chudakova
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