Do all O stars form in star clusters?

Details Do all O stars form in star clusters? Do all O stars form in star clusters?

2011-11-01

arxiv.org/abs/1111.0294v1

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

6 pages, 3 Figures, to appear in the proceedings of "Stellar Clusters and Associations - A RIA workshop on GAIA", 23-27 May 20

Scientific paper

The question whether or not massive stars can form in isolation or only in star clusters is of great importance for the theory of (massive) star-formation as well as for the stellar initial mass function of whole galaxies (IGIMF-theory). While a seemingly easy question it is rather difficult to answer. Several physical processes (e.g. star-loss due to stellar dynamics or gas expulsion) and observational limitations (e.g. dust obscuration of young clusters, resolution) pose severe challenges to answer this question. In this contribution we will present the current arguments in favour and against the idea that all O stars form in clusters.

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