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6 papers · 1 filter
The opposition and tilt effects of Saturn's rings from HST observations
Heikki Salo, Richard G. French
The two major factors contributing to the opposition brightening of Saturn's rings are i) the intrinsic brightening of particles due to coherent backscattering and/or shadow-hiding…
The 1998 November 14 Occultation of GSC 0622-00345 by Saturn. II. Stratospheric Thermal Profile, Power Spectrum, and Gravity Waves
Joseph Harrington, Richard G. French, Katia Matcheva
On 1998 November 14, Saturn and its rings occulted the star GSC 0622-00345. The occultation latitude was 55.5 degrees S. This paper analyzes the 2.3 μm light curve derived by Harri…
The 1998 November 14 Occultation of GSC 0622-00345 by Saturn. I. Techniques for Ground-Based Stellar Occultations
Joseph Harrington, Richard G. French
On 1998 November 14, Saturn and its rings occulted the star GSC 0622-00345. We observed atmospheric immersion with NSFCAM at the National Aeronautics and Space Administration's Inf…
A procedure to analyze nonlinear density waves in Saturn's rings using several occultation profiles
N. J. Rappaport, P. -Y. Longaretti, R. G. French +2
Cassini radio science experiments have provided multiple occultation optical depth profiles of Saturn's rings that can be used in combination to analyze density waves. This paper e…
Discovery of a Planetary-mass Companion to a Brown Dwarf in Taurus
K. Todorov, K. L. Luhman, K. K. McLeod
We have performed a survey for substellar companions to young brown dwarfs in the Taurus star-forming region using the Wide Field Planetary Camera 2 on board the Hubble Space Teles…
G-torsors over a Dedekind scheme
Michael Broshi
We prove the equivalence of three "points of view" of the notion of a G-torsor when the base scheme is a Dedekind scheme. As an application, we show that the fibered category of G-…