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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Neptune's ring arcs confined by coorbital satellites: dust orbital evolution through solar radiation

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Giuliatti Winter, S. M. [1] ; Madeira, G. [1] ; Sfair, R. [1]
Total Authors: 3
[1] Sao Paulo State Univ UNESP, Grp Dinam Orbital & Planetol, BR-12516410 Guaratingueta, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Monthly Notices of the Royal Astronomical Society; v. 496, n. 1, p. 590-597, JUL 2020.
Web of Science Citations: 0

Here, we report the results of a set of numerical simulations of the system formed by Neptune, Galatea, dust ring particles, and hypothetical co-orbital satellites. This dynamical system depicts a recent confinement mechanism formed by four co-orbital satellites being responsible for the azimuthal confinement of the arcs. After the numerical simulations, the particles were divided into four groups: particles that stay in the arcs, transient particles, particles that leave the arcs, and particles that collide with the co-orbital satellites. Our results showed that the lifetime of the smaller particles is 50 yr at most. After 100 yr, about 20 per cent of the total amount of larger particles are still present in the arcs. From our numerical simulations, the particles should be present in all arcs after 30 yr. Analysis of the dust production ruled out the hypothesis that small satellites close to or in the arc structure could be its source. (AU)

FAPESP's process: 18/23568-6 - Scenarios for the formation of Neptune's arcs and the giant satellites of the Solar System
Grantee:Gustavo Oliveira Madeira
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 16/24488-0 - Orbital evolution study of particles in Lindblad and corotation resonances and under influence of coorbitals satellites: planetary arcs application
Grantee:Gustavo Oliveira Madeira
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 16/24561-0 - On the relevance of small bodies in orbital dynamics
Grantee:Othon Cabo Winter
Support Opportunities: Research Projects - Thematic Grants