IALP 13078
INSTITUTO DE ASTROFISICA LA PLATA
Unidad Ejecutora - UE
artículos
Título:
Chirikov diffusion in the asteroidal three-body resonance (5, −2, −2)
Autor/es:
FERNANDO CACHUCHO; PABLO CINCOTTA; SYLVIO FERRAZ-MELLO
Revista:
CELESTIAL MECHANICS & DYNAMICAL ASTRONOMY
Editorial:
SPRINGER
Referencias:
Año: 2010 vol. 108 p. 35 - 58
ISSN:
0923-2958
Resumen:
the theory of diffusion in many-dimensional Hamiltonian system is appliedto asteroidal dynamics. The general formulation developed by Chirikov is applied to theNesvorný-Morbidelli analytic model of three-body (three-orbit) mean-motion resonances(Jupiter-Saturn-asteroid). In particular, we investigate the diffusion along and across the sep-aratrices of the (5, −2, −2) resonance of the (490) Veritas asteroidal family and their rela-tionship to diffusion in semi-major axis and eccentricity. The estimations of diffusion wereobtained using the Melnikov integral, a Hadjidemetriou-type sympletic map and numericalintegrations for times up to 108 years.
