Titan's Atmosphere in Late Southern Spring Observed with Adaptive Optics on the W. M. Keck II 10-Meter Telescope |
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| Authors: | Henry G RoeImke de Pater Bruce A MacintoshSeran G Gibbard Claire E MaxChris P McKay |
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| Institution: | a Department of Astronomy, University of California, 601 Campbell Hall, Berkeley, California, 94720-3411, f1hroe@astro.berkeley.eduf1b Department of Astronomy, University of California, 601 Campbell Hall, Berkeley, California, 94720-3411c Lawrence Livermore National Laboratory, Livermore, California, 94550d NASA Ames Research Center, Moffett Field, California, 94035 |
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| Abstract: | Using adaptive optics on the W. M. Keck II telescope, we imaged Titan several times during 1999 to 2001 in narrowband near-infrared filters selected to probe Titan's stratosphere and upper troposphere. We observed a bright feature around the south pole, possibly a collar of haze or clouds. Further, we find that solar phase angle explains most of the observed east-west brightness asymmetry of Titan's atmosphere, although the data do not preclude the presence of a “morning fog” effect at small solar phase angle. |
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| Keywords: | Titan |
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