[1] Penn State Univ, Dept Astron & Astrophys, Davey Lab 525, University Pk, PA 16802 USA
[2] Osserv Astron Brera, INAF, I-23807 Merate, Italy
[3] Penn State Univ, Ctr Gravitat Wave Phys, Davey Lab 104, University Pk, PA 16802 USA
[4] Univ Nevada, Dept Phys, Las Vegas, NV 89154 USA
[5] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England
[6] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[7] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA
[8] Agenzia Spaziale Italiana Sci Data Ctr, I-00044 Frascati, Italy
[9] Univ Milano Bicocca, Dipartimento Fis, I-20126 Milan, Italy
[10] INAF Ist Astrofis Spaziale & Fis Cosm, Sez Palermo, I-90146 Palermo, Italy
[11] CALTECH, Dept Astron, Pasadena, CA 91125 USA
[12] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA