Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2009-03-26
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
6 pages, 1 figure (NB: best seen in postscript version, degraded in pdf), uses asp2006_hotcool.sty. To be published in "Hot an
Scientific paper
The integrated properties of young star clusters are subject to large cluster-to-cluster variations because they depend directly on small numbers of bright stars. At ages at which red supergiants are expected to exist, these luminous but rare stars can be blamed for most of the variations. If unresolved clusters are to be used to constrain red supergiant models, methods must be developed that take these stochastic fluctuations into account. We discuss prospects and open issues in this field, based on recent work on high mass clusters in M82, and on first experiments towards a Bayesian study of cluster populations.
Fouesneau Morgan
Lancon Ariane
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