Resolving Extragalactic Star Clusters with HST/ACS
Astrophysics
2007-07-03 v1
Abstract
With HST, colour-magnitude diagrams (CMDs) can be obtained for young star clusters well beyond the Local Group. Such data can help constrain cluster ages and metallicities, and also provide a reference against which intermediate- and high mass stellar models can be compared. Here, CMDs are presented for two massive (>10^5 Msun) clusters and compared with Padua and Geneva isochrones. The problem of the ratio of blue to red supergiants is also addressed.
Cite
@article{arxiv.0707.0205,
title = {Resolving Extragalactic Star Clusters with HST/ACS},
author = {S. S. Larsen},
journal= {arXiv preprint arXiv:0707.0205},
year = {2007}
}
Comments
4 pages, incl. 2 figures. To appear in the proceedings of the 41st ESLAB Symposium, "The impact of HST on European astronomy", ed. G. De Marchi & F. D. Macchetto (Berlin: Springer), in press