Pluto System Small Moons: NH Post-Encounter Phase, 1 Aug 2015- TBD |
Pluto System Small Moons: NH Post-Encounter Phase, 1 Aug 2015- TBD |
Aug 1 2015, 06:07 PM
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Merciless Robot Group: Admin Posts: 8783 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
This topic is for discussion of data on Nix, Hydra, Styx, and Kerberos (as well as any other small bodies that may be discovered) received after 1 Aug 2015.
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Jan 24 2017, 09:33 PM
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Senior Member Group: Members Posts: 1887 Joined: 20-November 04 From: Iowa Member No.: 110 |
QUOTE During a previous epoch where Charon migrated away from Pluto, the minor satellites could have been trapped in orbital mean motion inclination resonances. An outward migrating Charon induces large variations in Nix and Styx's obliquities. The cause is a commensurability between the mean motion resonance frequency and the spin precession rate of the spinning body. As the minor satellites are near mean motion resonances, this mechanism could have lifted the obliquities of all four minor satellites. If so the high obliquities of Pluto and Charon's minor satellites imply that this system experienced orbital migration and all satellites were at one time captured into mean motion resonances. https://arxiv.org/abs/1701.05594 |
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