Probing Titan's atmosphere by stellar occultation

Details Probing Titan's atmosphere by stellar occultation Probing Titan's atmosphere by stellar occultation

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990natur.343..350s&link_type=abstract

Nature (ISSN 0028-0836), vol. 343, Jan. 25, 1990, p. 350-353.

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Atmospheric Physics, Satellite Atmospheres, Stellar Occultation, Titan, Light Curve, Satellite Sounding, Stratosphere, Saturn, Titan, Satellites, Astronomy, Occultations, Atmosphere, Altitude, Stratosphere, Physical Properties, Earth-Based Observations, Analysis, Lightcurves, Techniques, Temperature, Obliquity

Scientific paper

Results from the first stellar occultation by Titan ever observed, of the bright star 28 Sagitarii, are reported. The event was used to probe Titan's atmosphere in an altitude range of about 250-500 km, where until now there has been an 'information gap' between infrared and ultraviolet Voyager observations, and the results are reported. A central flash was detected as the center of Titan's shadow passed a few tens of km from Paris. This central flash is used to estimate a finite oblateness of Titan's stratosphere, which could arise from a superrotation of Titan's atmosphere.

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