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相关论文: Surface Brightness Profiles of Dwarf Galaxies: I. …

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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)…

星系天体物理 · 物理学 2016-06-06 Kimberly A. Herrmann , Deidre A. Hunter , Bruce G. Elmegreen

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…

宇宙学与河外天体物理 · 物理学 2015-05-30 Leonel Gutierrez , Peter Erwin , Rebeca Aladro , John E. Beckman

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…

天体物理学 · 物理学 2009-11-11 M. Pohlen , I. Trujillo

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").…

天体物理学 · 物理学 2007-12-11 Peter Erwin , Michael Pohlen , Leonel Gutierrez , John E. Beckman

We have explored radial color and stellar surface mass density profiles for a sample of 85 late-type spiral galaxies with deep (down to ~27 mag arcsec^-2) SDSS g'- and r'-band surface brightness profiles. About 90% of the light profiles…

天体物理学 · 物理学 2009-11-13 Judit Bakos , Ignacio Trujillo , Michael Pohlen , ;

We present a study of 66 barred, early-type (S0-Sb) disk galaxies, focused on the disk surface brightness profile outside the bar region and the nature of Freeman Type I and II profiles, their origins, and their possible relation to disk…

天体物理学 · 物理学 2008-11-26 Peter Erwin , Michael Pohlen , John E. Beckman

We investigate the stellar disk properties of a sample of 19 nearby spiral galaxies with low inclination and late Hubble type (Scd or later). We combine our high-resolution HST I-band observations with existing ground-based optical images…

天体物理学 · 物理学 2009-11-07 Torsten Boeker , Rebecca Stanek , Roeland P. van der Marel

The mechanism causing breaks in the radial surface brightness distribution of spiral galaxies is not yet well known. Despite theoretical efforts, there is not a unique explanation for these features and the observational results are not…

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.…

天体物理学 · 物理学 2007-06-27 Peter Erwin , Michael Pohlen , John E. Beckman , Leonel Gutierrez , Rebeca Aladro

We have studied multi-band surface brightness profiles of a representative sample of 34 nearby dwarf irregular galaxies (dIrrs). Our data include GALEX FUV/NUV, UBV, H\alpha, and Spitzer 3.6 \mum images. These galaxies constitute the…

宇宙学与河外天体物理 · 物理学 2015-06-03 Hong-Xin Zhang , Deidre A. Hunter , Bruce G. Elmegreen , Yu Gao , Andreas Schruba

Breaks in the surface brightness profiles in the outer regions of galactic discs are thought to have formed by various internal and external processes, and by studying the breaks we aim to better understand what processes are responsible…

星系天体物理 · 物理学 2016-11-30 Jarkko Laine , Eija Laurikainen , Heikki Salo

We study the surface brightness profiles of disc galaxies in the 3.6 micron images from the Spitzer Survey of Stellar Structure in Galaxies (S4G) and K_s-band images from the Near Infrared S0-Sa galaxy Survey (NIRS0S). We particularly…

We fit elliptical isophotes to the Hubble Deep Field-North WFPC-2 and NICMOS data to study the rest-frame UV_{218}-U_{300} color profiles and rest-frame B surface brightness profiles of 33 intermediate redshift galaxies (0.5 <= z <= 1.2)…

天体物理学 · 物理学 2009-11-07 Pimol Moth , Richard J. Elston

We examine the relation between breaks in the surface brightness profiles and radial abundance gradients within the optical radius in the discs of 134 spiral galaxies from the CALIFA survey. The distribution of the radial abundance (in…

星系天体物理 · 物理学 2017-12-20 L. S. Pilyugin , E. K Grebel , I. A. Zinchenko , Y. A. Nefedyev , J. M. Vilchez

Thanks to new advances in astronomical imaging, we can now routinely explore disk galaxy profiles about two magnitudes deeper than the data available 20 years ago. In this regard, it is an opportune time to reevaluate the past…

星系天体物理 · 物理学 2026-01-14 Samane Raji , Ignacio Trujillo , Fernando Buitrago , Giulia Golini , Ignacio Ruiz Cejudo

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…

天体物理学 · 物理学 2009-11-06 G. Gavazzi , S. Zibetti , A. Boselli , P. Franzetti , M. Scodeggio , S. Martocchi

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…

星系天体物理 · 物理学 2024-02-21 Dewang Xu , Si-Yue Yu

(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)…

天体物理学 · 物理学 2010-04-06 Lauren A. MacArthur , Stephane Courteau , Jon A. Holtzman

We have analyzed the radial scales, central surface brightnesses, and colors of 404 disks of various types of galaxies. The central surface brightness mu0 and linear disk scale length h vary smoothly along the Hubble sequence of galaxies…

宇宙学与河外天体物理 · 物理学 2013-04-04 Alexander S. Gusev , Svetlana A. Guslyakova , Maria S. Khramtsova

Galaxies in the Hubble Ultra Deep Field (UDF) larger than 10 pixels (0.3 arcsec) have been classified according to morphology and their photometric properties are presented. There are 269 spirals, 100 ellipticals, 114 chains, 126…

天体物理学 · 物理学 2009-11-13 Debra Meloy Elmegreen , Bruce G. Elmegreen , Douglas S. Rubin , Meredith A. Schaffer
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