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Dwarf Galaxies of the Local Group

Published online by Cambridge University Press:  12 May 2006

Rosanne Di Stefano ,
Roberto Soria ,
F.A. Primini  and
Albert Kong
Rosanne Di Stefano
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden St., Cambridge, MA 02138, USA email: rd@cfa.harvard.edu Department of Physics and Astronomy, Tufts University, Medford, MA 02155
Roberto Soria
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden St., Cambridge, MA 02138, USA email: rd@cfa.harvard.edu
F.A. Primini
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden St., Cambridge, MA 02138, USA email: rd@cfa.harvard.edu
Albert Kong
Affiliation:
Center for Space Research, MIT, Cambridge, MA 02139, USA
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Abstract

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XMM-Newton and Chandra have ushered in a new era for the study of dwarf galaxies in the Local Group. We provide an overview of the opportunities, challenges, and some early results. The large number of background sources relative to galaxy sources is a major theme. Despite this challenge, the identification of counterparts has been possible, providing hints that the same mechanisms producing X-ray sources in larger galaxies are active in dwarf galaxies. A supersoft X-ray source within 2″ of the supermassive black hole in M32 may be a remnant of the tidal disruption of a giant, although other explanations cannot be ruled out.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 1 , Symposium S230: Populations of High Energy Sources in Galaxies , August 2005 , pp. 164 - 169
Copyright
2006 International Astronomical Union