Title:
Complex dynamical behaviour of the asteroid 2335 James associated with
the secular resonances nu5
and nu16 - Numerical studies and theoretical interpretation
Authors:
Froeschle, Ch.; Scholl, H.; Morbidelli, A.
Affiliation:
AB(Observatoire de la Cote d'Azur, Nice, France) AC(Facultes Universitaires
Notre-Dame de la Paix,
Namur, Belgium)
Journal:
Astronomy and Astrophysics (ISSN 0004-6361), vol. 249, no. 2, Sept. 1991,
p. 553-563. (A&A
Homepage)
Publication Date:
09/1991
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
ASTEROIDS, CELESTIAL MECHANICS, COMPUTATIONAL ASTROPHYSICS, ORBITAL
RESONANCES (CELESTIAL MECHANICS), SECULAR VARIATIONS, ASTRONOMICAL
MODELS, ECCENTRICITY, LAGRANGIAN EQUILIBRIUM POINTS, LIBRATION, MANY
BODY PROBLEM
Bibliographic Code:
1991A&A...249..553F
Abstract
A forwards integration in the frame of the sun-Jupiter-Saturn model
over 1 Myr shows that the asteroid 2335 James is located in
the secular resonance nu16 James is an omega-librator during the whole
period. A complex orbital evolution appears in a
backwards integration over 5 Myr: James is temporarily located also
in the nu5 secular resonance. The argument of perihelion
omega alternates between circulation and libration. A theoretical explanation
for this complex behavior is provided. In a
sun-Mars-Jupiter-Saturn model, close encounters of James with Mars
occur without ejecting James from the nu16 resonance
region. The integration of a cloud of test objects surrounding the
orbit of James confirms the chaotic nature of this resonance
region as indicated by theory.