[1] Univ Massachusetts Lowell, Dept Environm Earth & Atmospher Sci, Lowell, MA 01854 USA
[2] Univ Massachusetts, Sch Marine Sci, Lowell, MA 01854 USA
[3] Harvard Smithsonian Ctr Astrophys, Atom & Mol Phys Div, Cambridge, MA 02138 USA
[4] UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England
[5] Russian Acad Sci, Inst Appl Phys, Ulyanov St 46, Nizhnii Novgorod 603950, Russia
[6] Eotvos Lorand Univ, Lab Mol Struct & Dynam, Inst Chem, Pazmany Peter Setany 1-A, H-1117 Budapest, Hungary
[7] SETI Inst, 189 Bernardo Ave,Suite 200, Mountain View, CA 94043 USA
[8] NASA, Ames Res Ctr, NAS Facil, MS T27B-1, Moffett Field, CA 94035 USA
[9] NASA, Ames Res Ctr, Space Sci & Astrobiol Div, MS 245-1, Moffett Field, CA 94035 USA
[10] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
[11] VE Zuev Inst Atmospher Opt, Lab Theoret Spect, Academician Zuev Sq 1, Tomsk 634021, Russia