@Article{MotaRocc:2019:EqPoSt,
author = "Mota, Marcelo Lisboa and Rocco, Evandro Marconi",
affiliation = "{} and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Equilibrium points stability analysis for the asteroid 21
Lutetia",
journal = "Journal of Physics: Conference Series",
year = "2019",
volume = "1365",
pages = "012007",
note = "{This work investigates the stability of the equilibrium points
that occur around the} and asteroid (21) Lutetia, assuming that
this body has a constant velocity of rotation and is immersed and
in a gravitational field, whose force of attraction presents a
perturbation with respect to the and {central force due to the
irregular mass distribution of the asteroid. For the calculation
of the} and potential, as well as of the effective potential, was
used the method of the expansion of the and potential in series,
associated to the asteroid decomposition in tetrahedral elements.
The zero and {velocity curves for a massless particle orbiting the
gravitational environment were analyzed. The} and linearized
dynamic equation in the vicinity of the equilibrium points, the
associated characteristic and equation, and the Jacobi constant
were calculated. The validation of the results was ratified by and
simulations of trajectories around these equilibrium points,
considering the gravitational field and {modelled. It should be
emphasized the general nature of the procedures adopted in this
work} and that is, they can be applied to any other asteroid.",
keywords = "Astrodynamics, Orbital Motion, Small bodies, Asteroids,
Gravitational Potential.",
abstract = "This work investigates the stability of the equilibrium points
that occur around the asteroid (21) Lutetia, assuming that this
body has a constant velocity of rotation and is immersed in a
gravitational field, whose force of attraction presents a
perturbation with respect to the central force due to the
irregular mass distribution of the asteroid. For the calculation
of the potential, as well as of the effective potential, was used
the method of the expansion of the potential in series, associated
to the asteroid decomposition in tetrahedral elements. The zero
velocity curves for a massless particle orbiting the gravitational
environment were analyzed. The linearized dynamic equation in the
vicinity of the equilibrium points, the associated characteristic
equation, and the Jacobi constant were calculated. The validation
of the results was ratified by simulations of trajectories around
these equilibrium points, considering the gravitational field
modelled. It should be emphasized the general nature of the
procedures adopted in this work, that is, they can be applied to
any other asteroid.",
doi = "10.1088/1742-6596/1365/1/012007",
url = "http://dx.doi.org/10.1088/1742-6596/1365/1/012007",
issn = "1742-6588",
label = "lattes: 0088337156908774 2 MotaRocc:2019:EqPoSt",
language = "pt",
targetfile = "motta_equilibrium.pdf",
urlaccessdate = "25 abr. 2024"
}