[1] Karl Franzens Univ Graz, Inst Phys, IGAM, Univ Pl 5, A-8010 Graz, Austria
[2] Ilia State Univ, Cholokashvili Ave 5-3, Tbilisi, Georgia
[3] Abastumani Astrophys Observ, Mt Kanobili, Georgia
[4] Georg August Univ, Inst Astrophys, Friedrich Hund Pl 1, D-37077 Gottingen, Germany
[5] Univ Illes Balears, Dept Fis, Palma De Mallorca 07122, Spain
[6] Univ Illes Balears, Inst Aplicac Computac Codi Comunitari IAC3, Palma De Mallorca 07122, Spain
[7] Bilkent Univ, Dept Mech Engn, TR-06800 Ankara, Turkey
[8] Max Planck Inst Sonnensyst Forsch, Justus von Liebig Weg 3, D-37077 Gottingen, Germany
[9] NCAR, High Altitude Observ, 3080 Ctr Green Dr, Boulder, CO 80301 USA
[10] New York Univ Abu Dhabi, Ctr Space Sci, NYUAD Inst, Abu Dhabi, U Arab Emirates
[11] Tel Aviv Univ, IL-69978 Tel Aviv, Israel
[12] INAF, Osservatorio Astrofis Catania, Via S Sofia 78, I-95123 Catania, Italy
[13] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[14] Catholic Univ Amer, Washington, DC 20064 USA
[15] NASA, SETI Inst, Ames Res Ctr, Space Sci & Astrobiol Div,Planetary Syst Branch, MS-245-3, Moffett Field, CA 94035 USA
[16] Cornell Univ, Cornell Ctr Astrophys & Planetary Sci, Ithaca, NY 14853 USA