@Article{AljbaaeChPrCaHuSoMe:2019:OrStNe,
author = "Aljbaae, Safwan and Chanut, Thierry Gregory Gil and Prado, Antonio
Fernando Bertachini de Almeida and Carruba, V. and Hussmann, H.
and Souchay, J. and Merguizo Sanchez, Diogo",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Universidade Estadual Paulista
(UNESP)} and {DLR Institute of Planetary Research} and {Sorbonne
Universites} and {Instituto Nacional de Pesquisas Espaciais
(INPE)}",
title = "Orbital stability near the (87) Sylvia system",
journal = "Monthly Notices of the Royal Astronomical Society",
year = "2019",
volume = "486",
number = "2",
pages = "2557--2569",
keywords = "Astrodin{\^a}mica, Astrodynamics, Aster{\'o}ides, gravitation,
celestial mechanics, minor planets, asteroids: individual: (87)
Sylvia.",
abstract = "The main goal of our work is to study the orbital dynamics of a
spacecraft near the (87) Sylvia system. Here, we consider a
non-homogeneous mass distribution with a dense core inside the
primary asteroid. The Mascon gravity framework using the shaped
polyhedral source, from light-curve data, is chosen to calculate
the gravitational field. The zero-velocity curves show four
unstable equilibrium points. In the absence of any solar or other
celestial body perturbations, a numerical analysis of the orbital
dynamics in the potential field of Sylvia is done to delineate the
region of stable and unstable motions. In our model, the motions
of the two moons of Sylvia and of the spacecraft are integrated
with the classical equations of motion in the body-fixed frame of
reference. An orbit is considered stable if the variation of its
periapsis radius does not exceed a threshold value (i.e. 6 km),
and the variation of its eccentricity does not exceed 0.05,
although the orientation of these orbits may change. We found that
the first stable orbit is detected at a distance of 550 km from
the centre of Sylvia. No collision occurs with the central body
beyond 350 km. The collisions with Remus occur between 300 and 900
km, while with Romulus they occur between 900 and 1450 km.
Moreover, the orbits escape from the system when the distance is
smaller than 350 km. Finally, we found that the stability region
around our system decreases when the initial eccentricity
increases.",
doi = "10.1093/mnras/stz998",
url = "http://dx.doi.org/10.1093/mnras/stz998",
issn = "0035-8711 and 1365-2966",
label = "lattes: 7340081273816424 3 AljbaaeChPrCaHuSoSa:2019:OrStNe",
language = "en",
urlaccessdate = "28 mar. 2024"
}