The evolution of star clusters: The resolved-star approach

Details The evolution of star clusters: The resolved-star approach The evolution of star clusters: The resolved-star approach

2008-02-29

arxiv.org/abs/0802.4433v1

Astrophys.Space Sci.324:247-252,2009

Astronomy and Astrophysics

Astrophysics

7 pages including 11 figures. Talk given at the meeting on "Young massive star clusters - Initial conditions and environments"

Scientific paper

10.1007/s10509-009-0114-7

We present the first results of a new technique to detect, locate, and characterize young dissolving star clusters. Using HST/ACS archival images of the nearby galaxy IC2574, we performed stellar PSF photometry and selected the most massive stars as our first test sample. We used a group-finding algorithm on the selected massive stars to find cluster candidates. We then plot the color-magnitude diagrams for each group, and use stellar evolutionary models to estimate their age. So far, we found 79 groups with ages of up to about 100 Myr, displaying various sizes and densities.

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