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Related papers: Structure of Disk Dominated Galaxies I. Bulge/Disk…

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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

We analyze the dependence of the stellar disc flatness on the galaxy morphological type using 2D decomposition of galaxies from the reliable subsample of the Edge-on Galaxies in SDSS (EGIS) catalogue. Combining these data with the retrieved…

Astrophysics of Galaxies · Physics 2015-05-14 A. V. Mosenkov , N. Ya. Sotnikova , V. P. Reshetnikov , D. V. Bizyaev , S. J. Kautsch

The development of two-dimensional (2D) bulge-to-disk decomposition techniques has shown their advantages over traditional one-dimensional (1D) techniques, especially for galaxies with non-axisymmetric features. However, the full potential…

Astrophysics of Galaxies · Physics 2017-10-27 Hua Gao , Luis C. Ho

We explore galaxy properties and their link with environment and clustering using a population of ~1000 galaxies formed in a high resolution hydrodynamic simulation of the Lambda CDM cosmology. At the redshift we concentrate on, z=1, the…

Astrophysics · Physics 2015-05-13 Rupert A. C. Croft , Tiziana Di Matteo , Volker Springel , Lars Hernquist

We present a set of bulge-disk decompositions for a sample of 71,825 SDSS main-sample galaxies in the redshift range 0.003<z<0.05. We have fit each galaxy with either a de Vaucouleurs ('classical') or an exponential ('pseudo-') bulge and an…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 C. N. Lackner , J. E. Gunn

We have used Virtual Observatory technology to analyse the disk scale length and central surface brightness for a sample of 29955 bright disk galaxies from the Sloan Digital Sky Survey. We use the results in the r-band and revisit the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Kambiz Fathi

We investigate colors and mass-to-light ratios ($M/L$s) of the bulges and disks for 28 nearby spiral galaxies with various morphological types of Sab to Scd, using images in optical and near-infrared ($V$, $I$, and $J$) bands and published…

Astrophysics · Physics 2015-05-13 Akira Yoshino , Takashi Ichikawa

In the first paper of this series we use the publicly available code Gim2D to model the r- and i-band images of all galaxies in a magnitude-limited sample of roughly 1800 morphologically classified galaxies taken from the Sloan Digital Sky…

Astrophysics · Physics 2015-06-24 Lidia A. M. Tasca , Simon D. M. White

We study HST/NICMOS H-band images of bulges of two equal-sized samples of early- (T(RC3) < 4) and late-type spiral (mainly Sbc-Sc) galaxies matched in outer disk axis ratio. We find that bulges of late-type spirals are more elongated than…

Astrophysics · Physics 2009-11-07 K. Fathi , R. F. Peletier

Surface-brightness profiles for early-type (S0-Sb) disks exhibit three main classes (Type I, II, and III). Type II profiles are more common in barred galaxies, and most of the time appear to be related to the bar's Outer Lindblad Resonance.…

Astrophysics · Physics 2007-06-27 Peter Erwin , Michael Pohlen , John E. Beckman , Leonel Gutierrez , Rebeca Aladro

Major-axis long-slit stellar kinematics was obtained for 30 edge-on spiral galaxies, 24 with a boxy/peanut-shaped (B/PS) bulge. B/PS bulges are present in >45% of highly inclined systems and much work suggests that they are the edge-on…

Astrophysics · Physics 2009-11-10 A. Chung , M. Bureau

Flattened bulges with disk-like properties are considered to be the end product of secular evolution processes at work in the inner regions of galaxies. On the contrary, classical bulges are characterized by rounder shapes and thought to be…

Astrophysics of Galaxies · Physics 2018-07-18 L. Costantin , E. M. Corsini , J. Méndez-Abreu , L. Morelli , E. Dalla Bontà , A. Pizzella

In this second paper of a series, we explore the B-V, U-B, and FUV-NUV radial color trends from a multi-wavelength sample of 141 dwarf disk galaxies. Like spirals, dwarf galaxies have three types of radial surface brightness profiles: (I)…

Astrophysics of Galaxies · Physics 2016-06-06 Kimberly A. Herrmann , Deidre A. Hunter , Bruce G. Elmegreen

We present multi-component decomposition of high-quality $R$-band images of 312 disk galaxies from the Carnegie-Irvine Galaxy Survey. In addition to bulges and disks, we successfully model nuclei, bars, disk breaks, nuclear/inner lenses,…

Astrophysics of Galaxies · Physics 2019-10-10 Hua Gao , Luis C. Ho , Aaron J. Barth , Zhao-Yu Li

Based on VLT/FORS spectroscopy and HST/ACS imaging, we have constructed a sample of ~200 field spiral galaxies that cover redshifts up to z~1. Such a large data set allows to study the evolution of fundamental galaxy parameters like…

Astrophysics · Physics 2007-05-23 Asmus Boehm , Bodo L. Ziegler

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 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

We analyzed the deconvolved surface brightness profiles of 247 massive and angularly large disk galaxies at $1\leq z\leq 3$ to study high-redshift disk breaks, using F356W-band images from the Cosmic Evolution Early Release Science survey…

Astrophysics of Galaxies · Physics 2024-02-21 Dewang Xu , Si-Yue Yu

In this paper we study the properties of pseudobulges (bulges that appear similar to disk galaxies) and classical bulges (bulges which appear similar to E-type galaxies) in bulge-disk decompositions. We show that the distribution of bulge…

Astrophysics · Physics 2009-11-13 David B. Fisher , Niv Drory

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