Wfpc2 observations of massive and compact young star clusters in m31 - INSPIRE

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Wfpc2 observations of massive and compact young star clusters in m31

Oct, 2000

17 pages

Published in:

Astrophys.J. 548 (2001) 190

e-Print:

astro-ph/0010168 [astro-ph]

DOI:

10.1086/318679

View in:

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Abstract: (arXiv)

We present color magnitude diagrams of four blue massive and compact star clusters in M31: G38, G44, G94, and G293. The diagrams of the four clusters reveal a well-populated upper main sequence and various numbers of supergiants. The U-B and B-V colors of the upper main sequence stars are used to determine reddening estimates of the different lines of sight in the M31 disk. Reddening values range from E(B-V) = 0.20 +/- 0.10 to 0.31 +/- 0.11. We statistically remove field stars on the basis of completeness, magnitude and color. Isochrone fits to the field-subtracted, reddening-corrected diagrams yield age estimates ranging from 63 +/- 15 Myr to 160 +/- 60 Myr. Implications for the recent evolution of the disk near NGC 206 are discussed.

Note:

17 pages, Latex, ApJ, in Press

References(23)

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