[1] Univ Toulouse, Lab Astrophys Toulouse Tarbes, CNRS, F-31400 Toulouse, France
[2] INAF, IASF, I-20133 Milan, Italy
[3] Osservatorio Astron Bologna, INAF, I-40127 Bologna, Italy
[4] INAF, IRA, I-40129 Bologna, Italy
[5] Osserv Astron Capodimonte, INAF, I-80131 Naples, Italy
[6] Univ Bologna, Dipartimento Astron, I-40127 Bologna, Italy
[7] Univ Aix Marseille 1, CNRS, UMR 6110, Lab Astrophys Marseille, F-13376 Marseille 12, France
[8] Max Planck Inst Astrophys, D-85741 Garching, Germany
[9] Osserv Astron Brera, INAF, I-20021 Milan, Italy
[10] Inst Astrophys, UMR 7095, F-75014 Paris, France
[11] LERMA, Observ Paris, F-75014 Paris, France
[12] Astrophys Inst Potsdam, D-14482 Potsdam, Germany
[13] Osserv Astron Roma, INAF, I-00040 Monte Porzio Catone, Italy
[14] Integral Sci Data Ctr, CH-1290 Versoix, Switzerland
[15] Observ Geneva, CH-1290 Sauverny, Switzerland
[16] A Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland
[17] Univ Aix Marseille 1, Ctr Phys Theor, CNRS, UMR 6207, F-13288 Marseille, France
[18] Univ Porto, Ctr Astrofis, P-4150762 Oporto, Portugal
[19] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA
[20] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England
[21] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany
[22] Canada France Hawaii Telescope Corp, Kamuela, HI 96743 USA
[23] Univ Sternwarte Munchen, D-81679 Munich, Germany