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Star Clusters and Stellar Populations of the M31 Disk as Viewed by HST

Published online by Cambridge University Press:  03 August 2017

Benjamin F. Williams  and
Paul W. Hodge
Benjamin F. Williams
Affiliation:
University of Washington, Astronomy Box 351580, Seattle, WA 98195, USA, ben@astro.washington.edu
Paul W. Hodge
Affiliation:
University of Washington, Astronomy Box 351580, Seattle, WA 98195, USA, hodge@astro.washington.edu

Abstract

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We present a new method for finding associations of young stars in M31 using broadband WFPC2 data from the HST data archive. Applying our identification method to 13 WFPC2 fields, covering an area of ∼60 arcmin2, has revealed 80 new candidate young star clusters in these portions of the M31 disk. Most of these clusters are small (≳5 pc) young (∼10–200 Myr) star groups located within large OB associations. We have estimated the reddening values and the ages of each candidate individually by fitting isochrones to the stellar photometry. We provide a catalogue of the candidates including rough approximations of their reddenings and ages.

Type
Part 1. The Star Clusters of Local Group Galaxies
Information
Symposium - International Astronomical Union , Volume 207: Extragalactic Star Clusters , 2002 , pp. 149 - 151
Copyright
Copyright © Astronomical Society of the Pacific 2002 

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