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相关论文: The structure of large-scale stellar disks in clus…

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We have obtained imaging data in two photometric bands, g and r, for a sample of 42 isolated lenticular galaxies with the Las Cumbres Observatory one-meter telescope network. We have analyzed the structure of their large-scale stellar…

星系天体物理 · 物理学 2020-08-12 Olga K. Sil'chenko , Alexei Yu. Kniazev , Ekaterina M. Chudakova

We suggest and verify a new photometric method enabling derivation of relative thickness of a galactic disk from two-dimensional surface-brightness distribution of the galaxy in the plane of the sky. The method is applied to images of 45…

星系天体物理 · 物理学 2015-06-23 Ekaterina M. Chudakova , Olga K. Sil'chenko

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 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

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

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 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

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

The disk positions for galaxies of various morphological and nuclear-activity types (normal galaxies, QSO, Sy, E/S0, low-surface brightness galaxies, etc.) on the "central surface brightness - exponential scalelength" plane are considered.…

天体物理学 · 物理学 2009-10-31 V. P. Reshetnikov

Hubble Space Telescope (HST) imaging of four rich, X-ray luminous, galaxy clusters (0.33<z<0.83) is used to produce quantitative morphological measurements for galaxies in their fields. Catalogs of these measurements are presented for 1642…

天体物理学 · 物理学 2009-11-10 Amelie Saintonge , David Schade , Erica Ellingson , Howard K. C. Yee , Raymond G. Carlberg

We study the influence of environment on the structure of disc galaxies, using \texttt{IMFIT} to measure the g- and r-band structural parameters of the surface-brightness profiles for $\sim$700 low-redshift (z$<$0.063) cluster and field…

星系天体物理 · 物理学 2017-03-22 Florian Pranger , Ignacio Trujillo , Lee S. Kelvin , María Cebrián

We present stellar mass surface density profiles of a mass-selected sample of 177 galaxies at 0.5 < z < 2.5, obtained using very deep HST optical and near-infrared data over the GOODS-South field, including recent CANDELS data. Accurate…

宇宙学与河外天体物理 · 物理学 2015-06-11 Daniel Szomoru , Marijn Franx , Pieter G. van Dokkum , Michele Trenti , Garth D. Illingworth , Ivo Labbe , Pascal Oesch

We present the results of an analysis of Pan-STARRS1 Medium Deep Survey multi-band (g,r,i,z,y) images of a sample of 698 low-redshift disk galaxies that span broad ranges in stellar mass, star-formation rate, and bulge/disk ratio. We use…

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…

Hubble Space Telescope allows us to study the central surface brightness profiles for globular clusters at unprecedented detail. We have mined the HST archives to obtain 38 WFPC2 images of galactic globular clusters with adequate exposure…

天体物理学 · 物理学 2008-11-26 E. Noyola , K. Gebhardt

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

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

We analyse the surface brightness profiles of disc-type galaxies in the EAGLE simulations in order to investigate the effects of galaxy mass and environment on galaxy profile types. Following observational works, we classify the simulated…

星系天体物理 · 物理学 2021-10-27 Joel L. Pfeffer , Kenji Bekki , Duncan A. Forbes , Warrick J. Couch , Bärbel S. Koribalski

(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 present surface photometry results for a sample of eleven edge-on galaxies observed with the 6m telescope at the Special Astrophysical Observatory (Russia). The photometric scale length, scale height, and central surface brightness of…

天体物理学 · 物理学 2009-11-10 Dmitry Bizyaev , Serafim Kajsin
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