@inbook{ffd3bec82a624d0eba9c52ee7f42b757,
title = "Resolving extragalactic star clusters with HST/ACS",
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 (>105 Mȯ) clusters and compared with Padua and Geneva isochrones. The problem of the ratio of blue to red supergiants is also addressed.",
author = "S.S. Larsen",
year = "2010",
language = "English",
isbn = "978-90-481-3399-4",
series = "Astrophysics and space science proceedings",
publisher = "Springer",
pages = "133--136",
editor = "Macchetto, {F. Duccio}",
booktitle = "The impact of HST on European astronomy",
}