The occultation of 28 SGR by Titan

Details The occultation of 28 SGR by Titan The occultation of 28 SGR by Titan

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...269..541h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 269, no. 1-2, p. 541-563.

Astronomy and Astrophysics

Astronomy

74

Atmospheric Physics, Satellite Atmospheres, Titan, Atmospheric Temperature, Light Curve, Occultation, Wind Velocity, Saturn, Satellites, Titan, Astronomy, Occultations, Lightcurve, Model, Wavelengths, Atmosphere, Structure, Altitude, Distribution, Pressure, Temperature, Optical Properties, Depth, Haze, Wind, Velocity, Layers, Latitude, Stratosphere, Particles, Size, Density, Symmetry, Rotation, Earth-Based Observations, Comparisons, Data, Composition, Calculations

Scientific paper

We present a comprehensive analysis of data obtained during the 1989 July 3 occultation of 28 Sgr by Titan. The data set includes 23 lightcurves from 15 separate stations, spanning wavelengths from 0.36 to 0.89 micron. A detailed model of the structure of Titan's atmosphere in the altitude range 250 to 450 km is developed, giving the distribution of temperature, pressure, haze optical depth, and zonal wind velocity as a function of altitude and latitude. Haze layers detected in Titan's stratosphere are about one scale height higher than inferred from Voyager data, and show a wavelength dependence indicative of particle sizes on the order of 0.1 micron. A marked north-south dichotomy in haze density is observed with a transition to lower density south of about -20 deg latitude. Zonal wind speeds are inferred from global distortions from spherical symmetry and are of the order of 100 m/s with significant increase toward higher latitudes. Titan's high atmosphere shows substantial axial symmetry; the position angle of the symmetry axis is equal to the position angle of Saturn's spin axis to within about 1 deg.

Affiliated with

Also associated with

No associations

Rating

The occultation of 28 SGR by Titan does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The occultation of 28 SGR by Titan, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The occultation of 28 SGR by Titan will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1440426