Physics – Optics
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003eaeja.....4156g&link_type=abstract
EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #4156
Physics
Optics
Scientific paper
We have acquired new images of Titan in the near-infrared during an exploratory observing campaign with the new Nasmyth Adaptive Optics System (NAOS) at the European Southern Observatory Very Large Telescope (ESO/VLT) 8-m UT4 unit in Chile in November 2002. Our data were taken with the CONICA camera, the infrared camera and spectrometer attached to NAOS, equipped with a 1024x1024 pixel InSb array detector sensitive from 1 to 5 micron. The nominal pixel size is 0.013 arcsec. The images are taken in several narrow-band filters (1.04, 1.08, 1.09, 1.24, 1.28, 1.64, 1.75, 2.12, 2.17 micron) and they cover three different phases of Titan at 80, 190 and 212 of SSP longitudes (November 20, 25 and 26 respectively). The reduced data exhibit atmospheric phenomena and surface features at a higher resolution and contrast than previously attained from the ground. We will present the first results of our analysis of the data and describe the phenomena observed. Acknowledgements : Based on observations collected at the European Southern Observatory, Chile (proposal No 70.C-0588)
Combes Michel
Coustenis Athena
Drossart Pierre
Gendron Eric
Hirtzig Mathieu
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