[1] ESF, ESSC, Strasbourg, France
[2] IWF OAW, Graz, Austria
[3] LESIA, Meudon, France
[4] New Mexico State Univ, Las Cruces, NM 88003 USA
[5] IAS, Paris, France
[6] Ecole Polytech, F-91128 Palaiseau, France
[7] ISSI, Bern, Switzerland
[8] IPSL, Paris, France
[9] CNR, IFSI, Rome, Italy
[10] Birkbeck Coll, London, England
[11] Leiden Univ, NL-2300 RA Leiden, Netherlands
[12] Univ Wales Coll Cardiff, Cardiff CF1 3NS, S Glam, Wales
[13] MPE Garching, Garching, Germany
[14] CSIC, IAA, Granada, Spain
[15] Univ Madrid, Madrid, Spain
[16] Univ Copenhagen, DK-1168 Copenhagen, Denmark
[17] Tech Univ, Darmstadt, Germany
[18] CNRS, CBM, F-75700 Paris, France
[19] IAG, Liege, Belgium