[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA USA
[2] Univ Bordeaux 1, Bordeaux, France
[3] European Space Agcy, European Space Res & Technol Ctr, Res & Sci Support Dept, NL-2200 AG Noordwijk, Netherlands
[4] Austrian Acad Sci, Space Res Inst, A-8010 Graz, Austria
[5] CALTECH, NASA, Exoplanet Sci Inst, Pasadena, CA 91125 USA
[6] CALTECH, Jet Prop Lab, Pasadena, CA 91125 USA
[7] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[8] Univ Autonoma Madrid, Madrid, Spain
[9] Max Planck Inst Astron, D-69117 Heidelberg, Germany
[10] Univ Paris Sud, Orsay, France
[11] Chalmers Univ Technol, Dept Radio & Space Sci, Onsala, Sweden
[12] Univ Arizona, Lunar & Planetary Lab, Tucson, AZ 85721 USA
[13] Ist Nazl Astrofis, Rome, Italy
[14] CCLRC Rutherford Appleton Lab, Space Sci & Technol Dept, Didcot, Oxon, England
[15] Landessternwarte Heidelberg, Heidelberg, Germany
[16] Leiden Observ, NL-2300 RA Leiden, Netherlands
[17] Observ Paris, Lab Univers & Ses Theories, Meudon, France
[18] SRON, Netherlands Inst Space Res, Utrecht, Netherlands
[19] UCL, Dept Phys & Astron, London, England
[20] Open Univ, Milton Keynes MK7 6AA, Bucks, England