Mathematics – Probability
Scientific paper
Aug 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004p%26ss...52..897m&link_type=abstract
Planetary and Space Science, Volume 52, Issue 10, p. 897-907.
Mathematics
Probability
7
Comet Rotation, Andoyer Variables, Rosetta, Radio Science
Scientific paper
A model with subsolar water sublimation on a triaxial, ellipsoidal comet nucleus is presented for the calculation of reactive torques. The resulting differential equations describing the comet's rotation are then Hamiltonian, and gravity-gradients are trivial to include. While effects derived from a weak perturbing function are neither able to change the rotational excitation nor the spin magnitude of the nucleus, it is shown how the spin orientation of comets can change significantly over an orbital run. However, of the four comets studied, 1P, 19P, 46P and the Rosetta target 67P, 19P and 46P were the only objects clearly exhibiting this feature, thereby confirming a technique used to derive the consequences of a more elaborate model of sublimation induced torques. In particular, the rotational parameters of 67P were seen to be very stable, indicating that a highly kinematical model of its rotation for the mapping of the comet's gravitational field during the Rosetta mission can be used. The model's hierarchy with 1P/Halley as the object with highest excitation probability, is consistent with observations.
No associations
LandOfFree
Rotational dynamics of subsolar sublimating triaxial comets 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 Rotational dynamics of subsolar sublimating triaxial comets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotational dynamics of subsolar sublimating triaxial comets will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1097836