[1] Univ Maryland, Dept Astron, College Pk, MD 20742 USA
[2] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[3] Observ Paris, LESIA, CNRS, UMR8109, F-91925 Meudon, France
[4] Johns Hopkins Univ, Dept Earth & Planetary Sci, Baltimore, MD 21218 USA
[5] Cornell Univ, Dept Astron, Ithaca, NY 14853 USA
[6] Space Sci & Applicat Inc, Lanham, MD 20706 USA
[7] Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England
[8] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
[9] CEA Saclay, Serv Astrophys, F-91191 Gif Sur Yvette, France
[10] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA
[11] NASA, George C Marshall Space Flight Ctr, Huntsville, AL 35812 USA
[12] Univ Paris 07, LISA, CNRS, UMR 7583, F-94010 Creteil, France
[13] Univ Paris 12, LISA, CNRS, UMR 7583, F-94010 Creteil, France
[14] Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3YB, S Glam, Wales
[15] European So Observ, D-85748 Garching, Germany
[16] Gesamthsch Wuppertal, Dept Phys, D-5600 Wuppertal 1, Germany
[17] CNR, Inst Astrophys Spatiale, Area Recerca Tor Vergata, I-00133 Rome, Italy