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机译:The deep XMM-newton survey of M 31
Department of Astronomy, Box 351580, University of Washington, Seattle,WA 98195, United States;
Institute of Astronomy, Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan;
Max-Planck-Institut für Extraterrestrische Physik, Giessenbachstra?e, 85748 Garching, GermanyDepartment of Physics and Astronomy, Open University, Walton Hall, Milton Keynes, MK7 6AA, United KingdomDepartment of Astrophysics, Astronomy and Mechanics, Faculty of Physics, University of Athens, Panepistimiopolis, 15784 Zografos, Athens, Greece;