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A new era for the globular cluster system in M31

Published online by Cambridge University Press:  18 January 2010

Myung Gyoon Lee ,
Sang Chul Kim ,
Ho Seong Hwang ,
Hong Soo Park ,
Doug Geisler ,
Ata Sarajedini  and
William E. Harris
Myung Gyoon Lee
Affiliation:
Department of Physics and Astronomy, Seoul National University, Seoul 151-742, Korea email: mglee@astro.snu.ac.kr, hspark@astro.snu.ac.kr
Sang Chul Kim
Affiliation:
Korea Astronomy and Space Science Institute, Daejeon, Korea email: sckim@kasi.re.kr
Ho Seong Hwang
Affiliation:
CEA Saclay, Gif-sur-Yvette, France email: hoseong.hwang@cea.fr
Hong Soo Park
Affiliation:
Department of Physics and Astronomy, Seoul National University, Seoul 151-742, Korea email: mglee@astro.snu.ac.kr, hspark@astro.snu.ac.kr
Doug Geisler
Affiliation:
Department of Physics, University of Concepción, Concepción, Chile email: dgeisler@astro-udec.cl
Ata Sarajedini
Affiliation:
Department of Astronomy, University of Florida, Gainesville, FL, USA email: ata@astro.ufl.edu
William E. Harris
Affiliation:
Department of Physics and Astronomy, McMaster University, Hamilton, ON, Canada email: harris@physics.mcmaster.ca
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Abstract

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The globular cluster system in M31 is an ideal laboratory for studying the formation and evolution of M31 as well as the globular clusters themselves. There have been numerous surveys and studies of the globular clusters in M31. However, only recently has the entire body of M31 been searched for globular clusters using wide-field CCD images by our group. A new era for the M31 globular cluster system has begun with the advent of wide-field CCD surveys of M31. We have discovered more than 100 new globular clusters in M31. Our catalog currently includes more than 500 globular clusters confirmed either based on spectra or HST images, many more than in the Milky Way. We present the structure, kinematics and chemical abundance of the M31 globular cluster system based on this large sample, and the implications for the formation and evolution of M31.

Keywords

galaxies: spiralLocal Groupgalaxies: stellar contentgalaxies: evolutiongalaxies: star clusters
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S266: Star clusters: basic galactic building blocks throughout time and space , August 2009 , pp. 117 - 122
Copyright
Copyright © International Astronomical Union 2010

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