publication . Article . 2005

Free and forced obliquities of the Galilean satellites of Jupiter

Bruce G. Bills;
Open Access
  • Published: 01 Mar 2005 Journal: Icarus, volume 175, pages 233-247 (issn: 0019-1035, Copyright policy)
  • Publisher: Elsevier BV
Abstract
The obliquity, or angular separation between orbit normal and spin pole, is an important parameter for the geodynamics of most Solar System bodies. Tidal dissipation has driven the obliquities of the Galilean satellites of Jupiter to small, but non-zero values. We present estimates of the free and forced obliquities of these satellites using a simple secular variation model for the orbits, and spin pole precession rate estimates based on gravity field parameters derived from Galileo spacecraft encounters. The free obliquity values are not well constrained by observations, but are presumed to be very small. The forced obliquity variations depend only on the orbit...
Persistent Identifiers
Subjects
arXiv: Astrophysics::Earth and Planetary AstrophysicsPhysics::Space Physics
free text keywords: Space and Planetary Science, Astronomy and Astrophysics, Satellite, Orbit, Secular variation, Gravitational field, Astrobiology, Geodesy, Galilean moons, symbols.namesake, symbols, Physics, Jupiter, Solar System, Precession
Download fromView all 2 versions
Open Access
ZENODO
Article . 2005
Provider: ZENODO
Open Access
Icarus
Article
Provider: UnpayWall
Restricted
Icarus
Article . 2005
Provider: Crossref
Any information missing or wrong?Report an Issue