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相关论文: Are the compact star clusters in M82 evolving towa…

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We present a study of the hierarchical clustering of the young stellar clusters in six local (3--15 Mpc) star-forming galaxies using Hubble Space Telescope broad band WFC3/UVIS UV and optical images from the Treasury Program LEGUS (Legacy…

We present results from ACS and WFPC observations in the low luminosity galaxy NGC 45. We identified 28 young star cluster candidates. While the exact values of age, mass, and extinction depend somewhat on the choice of SSP models, we find…

天体物理学 · 物理学 2015-06-24 Marcelo D. Mora , Soeren S. Larsen , Markus Kissler-Patig

We present a method for finding clusters of young stars in M31 using broadband WFPC2 data from the HST data archive. Applying our identification method to 13 WFPC2 fields, covering an area of ~60 arcmin^2, has revealed 79 new candidate…

天体物理学 · 物理学 2009-11-06 Benjamin F. Williams , Paul W. Hodge

AIMS: The cluster of hot stars observed in orbit around the central black hole of M31 has been interpreted as a 200 Myr starburst. The formation of a population of young stars in close proximity to a massive black hole presents a difficult…

天体物理学 · 物理学 2009-11-11 Pierre Demarque , Shanil Virani

We study the evolution and observability of young compact star clusters within about 200pc of the Galactic center. Calculations are performed using direct N-body integration on the GRAPE-4, including the effects of both stellar and binary…

天体物理学 · 物理学 2009-10-31 Simon Portegies Zwart , Junichiro Makino , Stephen McMillan , Piet Hut

We use archival {\it Hubble Space Telescope} observations of broad-band images from the ultraviolet (F255W-filter) through the near infrared (NICMOS F160W-filter) to study the star cluster population of the interacting spiral galaxy M51. We…

天体物理学 · 物理学 2009-11-10 N. Bastian , M. Gieles , H. J. G. L. M. Lamers , R. de Grijs , R. A. Scheepmaker

The number of known globular clusters in the Galactic bulge has been increasing steadily thanks to different new surveys. The aim of this study is to provide a census of the newly revealed globular clusters in the Galactic bulge, and…

星系天体物理 · 物理学 2024-08-06 E. Bica , S. Ortolani , B. Barbuy , R. A. P. Oliveira

We have performed a deep multi-band photometric analysis of the star cluster population of Haro 11. This starburst galaxy (log L_FUV = 10.3 L_sun) is considered a nearby analogue of Lyman break galaxies (LBGs) at high redshift. The study of…

宇宙学与河外天体物理 · 物理学 2009-08-24 Angela Adamo , Göran Östlin , Erik Zackrisson , Matthew Hayes

The present paper presents a tabulation of data on all 600 Galactic open clusters for which it is presently possible to calculate linear diameters. As expected, the youngest `clusters' with ages < 15 Myr, contain a significant (greater than…

天体物理学 · 物理学 2008-11-26 Sidney van den Bergh

We present an updated UBVRI photometric catalog containing 970 objects in the field of M31, selected from the Revised Bologna Catalog (RBC v.4.0), including 965, 967, 965, 953, and 827 sources in the individual UBVRI bands, respectively, of…

宇宙学与河外天体物理 · 物理学 2015-05-20 Zhou Fan , Richard de Grijs , Xu Zhou

A high number of embedded clusters is found in the Galaxy. Depending on the formation scenario, most of them can evolve to unbounded groups that are dissolved within a few tens of Myr. A systematic study of young stellar clusters showing…

星系天体物理 · 物理学 2015-06-11 T. Santos-Silva , J. Gregorio-Hetem

We studied the star cluster population properties in the nearby collisional ring galaxy NGC 922 using HST/WFPC2 photometry and population synthesis modeling. We found that 69% of the detected clusters are younger than 7 Myr, and that most…

宇宙学与河外天体物理 · 物理学 2015-05-14 Anne Pellerin , Gerhardt R. Meurer , Kenji Bekki , Debra M. Elmegreen , O. Ivy. Wong , Patricia Knezek

Recent high-resolution observations with the Hubble Space Telescope (HST) reveal that star clusters of extraordinary luminosity and compactness are commonly found in a variety of starburst systems. There has been much speculation that these…

天体物理学 · 物理学 2009-10-28 Luis C. Ho , Alexei V. Filippenko

We present a photometric catalog of 45 massive star clusters in the nuclear starburst of M 83 (NGC 5236), observed with the Hubble Space Telescope WFPC2, in both broad-band (F300W, F547M, and F814W) and narrow-band (F656N and F487N)…

天体物理学 · 物理学 2009-11-07 J. Harris , D. Calzetti , J. S. Gallagher , C. J. Conselice , D. A. Smith

We determine the age of 1,104 early-type galaxies in eight rich clusters ($z = 0.0046$ to $0.175$) using a new continuum color technique. We find that galaxies in clusters divide into two populations, an old population with a mean age…

天体物理学 · 物理学 2009-11-13 K. Rakos , J. Schombert , A. Odell

We study the evolution and observability of young and compact star clusters near the Galactic center, such as the Arches cluster and the Quintuplet. The star clusters are modeled with a combination of techniques; using direct N-body,…

天体物理学 · 物理学 2007-05-23 Simon F. Portegies Zwart

We present a study of the properties of the star-cluster systems around pseudo-bulges of late-type spiral galaxies using a sample of 11 galaxies with distances from 17 to 37 Mpc. Star clusters are identified from multiband HST ACS and WFPC2…

宇宙学与河外天体物理 · 物理学 2015-05-14 Daiana Di Nino , Michele Trenti , Massimo Stiavelli , C. Marcella Carollo , Claudia Scarlata , Rosemary F. G. Wyse

Ultraviolet, optical and near infrared images of the nearby (D ~ 5.5 Mpc) SBm galaxy NGC 1311, obtained with the Hubble Space Telescope, reveal a small population of 13 candidate star clusters. We identify candidate star clusters based on a…

We present a comprehensive catalog of 700 confirmed star clusters in the field of M31 compiled from three major existing catalogs. We detect 418 and 257 star clusters in Galaxy Evolution Explorer (GALEX) near-ultraviolet (NUV) and…

宇宙学与河外天体物理 · 物理学 2015-06-03 Yongbeom Kang , Soo-Chang Rey , Luciana Bianchi , Kyungsook Lee , YoungKwang Kim , Sangmo Tony Sohn

M82 is the nearest starburst galaxy. It contains two large systems of super star clusters, one being spawned today in the active starforming core, and one produced by an earlier starburst event which coincided with the last orbital passage…

天体物理学 · 物理学 2007-05-23 Robert W. O'Connell