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GALEX Ultraviolet Observations of Globular Clusters in Nearby Galaxies

Published online by Cambridge University Press:  01 August 2006

Soo-Chang Rey
Affiliation:
Department of Astronomy and Space Science, Chungnam National University, Daejeon 305-764, Korea email: screy@cnu.ac.kr
Sangmo T. Sohn
Affiliation:
Center for Space Astrophysics, Yonsei University, Seoul 120-749, Korea
R. Michael Rich
Affiliation:
Department of Physics and Astronomy, University of California at Los Angeles, Box 951547, Knudsen Hall, Los Angeles, CA 90095
Suk-Jin Yoon
Affiliation:
Center for Space Astrophysics, Yonsei University, Seoul 120-749, Korea
Chul Chung
Affiliation:
Center for Space Astrophysics, Yonsei University, Seoul 120-749, Korea
Sukyoung K. Yi
Affiliation:
Center for Space Astrophysics, Yonsei University, Seoul 120-749, Korea
Young-Wook Lee
Affiliation:
Center for Space Astrophysics, Yonsei University, Seoul 120-749, Korea
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The hot He-burning horizontal-branch (HB) stars and their progeny are most likely dominant ultraviolet (UV) sources in the old stellar population systems such as globular clusters (GCs). Integrated FUV flux can be an age indicator of GCs and allow us to investigate age distributions of GCs within a given galaxy or between galaxies. The unprecedented set of UV photometry for M31 by Galaxy Evolution Explorer (GALEX), coupled with most recent detailed population models enable to study detailed global UV properties of M31 GCs.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2007

References

Rey, S.-C. 2006, ApJS, in printGoogle Scholar