Session 70. Ganymede and Callisto

Contributed Oral Parallel Session, Chair: C.R. Chapman, R. Lopes-Gautier, Friday, October 15, 1999, 10:30-12:00noon, Sala Pietro d'Abano

70.01 The Gravity Field and Interior Structure of Callisto

J.D. Anderson, R.A. Jacobson, T.P. McElrath (JPL), G. Schubert, W.B. Moore (Dept. Earth \& Space Sci., UCLA)

70.02 Cratering Asymmetries on Ganymede and Triton: From the Sublime to the Ridiculous

P. Schenk, S. Sobieszczyk (Lunar and Planetary Institute)

70.03 Global Color Contrasts on Ganymede

T. Denk, G. Neukum (DLR), J.W. Head, R.T. Pappalardo (Brown), Galileo SSI Team

70.04 Carbon Dioxide on Callisto and Ganymede

C. A. Hibbitts, T. B. McCord, G. B. Hansen (Univ. of Hawaii), J. Klemaszewski (Arizona State Univ.), R. T. Pappalardo, G. C. Collins, L. M. Prockter (Brown Univ.)

70.05 Spatial Distribution of Ganymede's Ultraviolet Ozone Absorption from HST

J. R. Spencer (Lowell Obs.), K. S. Noll (S.T.Sc.I.), C. Henry (U. Oklahoma), R. E. Johnson (U. Virginia), A. Lane (J.P.L.), D. Domingue (A.P.L.), W. Calvin (U.S.G.S. Flagstaff)

70.06 Ozone synthesis by radiation in icy satellites

R. A. Baragiola, C. L. Atteberry, D.A. Bahr (University of Virginia, U.S.A.), M. M. Jakas, (Universidad La Laguna, Spain)

70.07 HST Imaging of Polar Aurorae on Ganymede

M. A. McGrath (STScI), P. D. Feldman, H. W. Moos, K. Retheford, D. F. Strobel, B. C. Wolven (JHU)

70.08 Observations of Ganymede's Visible Aurorae

M.E. Brown, A.H. Bouchez (Caltech)

70.09 Dust Clouds surrounding the Galilean Satellites

H. Kr\"uger (MPIK, Germany), A. V. Krivov (St. Petersburg University, Russia), D. P. Hamilton (Univ. of Maryland, USA), E. Gr\"un (MPIK, Germany)