Objects in NGC 205 resolved into stellar associations by Hubble Space Telescope ultraviolet imaging

被引：23

作者：

Cappellari, M ^{[1
]}

Bertola, F

Burstein, D

Buson, LM

Greggio, L

Renzini, A

机构：

[1] Univ Padua, Dipartimento Astron, I-35122 Padua, Italy

[2] Arizona State Univ, Dept Phys & Astron, Tempe, AZ 85287 USA

[3] Osservatorio Astron Capodimonte, I-80131 Naples, Italy

[4] Osservatorio Astron Bologna, Bologna, Italy

[5] Univ Sternwarte, Munich, Germany

[6] European So Observ, D-8046 Garching, Germany

来源：

ASTROPHYSICAL JOURNAL | 1999年 / 515卷 / 01期

基金：

美国国家航空航天局;

关键词：

galaxies : individual (NGC 205); galaxies : star clusters;

D O I：

10.1086/311966

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have obtained high-resolution UV images with the Hubble Space Telescope/Wide-Field Planetary Camera 2 of the central region of the dwarf elliptical galaxy NGC 205. Our images reveal that many of the hot UV stars previously detected and studied from the ground are actually multiple systems, open clusters, and star associations. We have performed photometry of two such clusters, and we find that our data are consistent with stellar ages of 50 and 100 Myr, respectively. From the number of massive stars in NGC 205, we estimate that the star formation episode in this galaxy has turned similar to 1000 M-. of gas into stars over the last 100 Myr.

引用

页码：L17 / L20

页数：4

共 19 条

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