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Astron. Astrophys. 347, 711-719 (1999) AcknowledgementsWe are grateful to B. Gladman, A. Morbidelli and V. Zappalà for many discussions on subjects related to that of the current paper. P.M. has worked on this paper while staying at the Torino Observatory thanks to an ESA External Fellowship. P.F. acknowledges support from the Italian Space Agency (ASI) and from the Italian Ministry for University and Scientific Research (MURST).
© European Southern Observatory (ESO) 1999 Online publication: June 30, 1999 ![]() |