Artigo
On the orbits of the outer satellites of Jupiter
Fecha
2003-04-01Registro en:
Astronomy & Astrophysics. Les Ulis Cedexa: E D P Sciences, v. 401, n. 2, p. 763-772, 2003.
0004-6361
10.1051/0004-6361:20030174
WOS:000181708800039
WOS000181708800039.pdf
5483476857978177
Autor
Universidade Estadual Paulista (Unesp)
Resumen
In this work we study the basic aspects concerning the stability of the outer satellites of Jupiter. Including the effects of the four giant planets and the Sun we study a large grid of initial conditions. Some important regions where satellites cannot survive are found. Basically these regions are due to Kozai and other resonances. We give an analytical explanation for the libration of the pericenters (ω) over bar - (ω) over bar (J). Another different center is also found. The period and amplitude of these librations are quite sensitive to initial conditions, so that precise observational data are needed for Pasiphae and Sinope. The effect of Jupiter's mass variation is briefly presented. This effect can be responsible for satellite capture and also for locking (ω) over bar - (ω) over bar (J) in temporary libration.