Production and fate of the G ring arc particles due to Aegaeon (Saturn LIII)

Detalhes bibliográficos
Autor(a) principal: Madeira, Gustavo [UNESP]
Data de Publicação: 2018
Outros Autores: Sfair, R. [UNESP], Mourão, D. C. [UNESP], Winter, S.M. Giuliatti [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1093/mnras/sty179
http://hdl.handle.net/11449/170946
Resumo: The G ring arc hosts the smallest satellite of Saturn, Aegaeon, observed with a set of images sent by Cassini spacecraft. Along with Aegaeon, the arc particles are trapped in a 7:6 corotation eccentric resonance with the satellite Mimas. Due to this resonance, both Aegaeon and the arc material are confined to within 60° of corotating longitudes. The arc particles are dust grains which can have their orbital motions severely disturbed by the solar radiation force. Our numerical simulations showed that Aegaeon is responsible for depleting the arc dust population by removing them through collisions. The solar radiation force hastens these collisions by removing most of the 10 μm sized grains in less than 40 yr. Some debris released from Aegaeon's surface by meteoroid impacts can populate the arc. However, it would take 30 000 yr for Aegaeon to supply the observed amount of arc material, and so it is unlikely that Aegaeon alone is the source of dust in the arc.
id UNSP_a22958b6bea859d9c30ac2b862810a37
oai_identifier_str oai:repositorio.unesp.br:11449/170946
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling Production and fate of the G ring arc particles due to Aegaeon (Saturn LIII)Planets and satellites: ringsThe G ring arc hosts the smallest satellite of Saturn, Aegaeon, observed with a set of images sent by Cassini spacecraft. Along with Aegaeon, the arc particles are trapped in a 7:6 corotation eccentric resonance with the satellite Mimas. Due to this resonance, both Aegaeon and the arc material are confined to within 60° of corotating longitudes. The arc particles are dust grains which can have their orbital motions severely disturbed by the solar radiation force. Our numerical simulations showed that Aegaeon is responsible for depleting the arc dust population by removing them through collisions. The solar radiation force hastens these collisions by removing most of the 10 μm sized grains in less than 40 yr. Some debris released from Aegaeon's surface by meteoroid impacts can populate the arc. However, it would take 30 000 yr for Aegaeon to supply the observed amount of arc material, and so it is unlikely that Aegaeon alone is the source of dust in the arc.Univ. Estadual Paulista -UNESP Grupo de Dinâmica Orbital e PlanetologiaUniv. Estadual Paulista -UNESP Grupo de Dinâmica Orbital e PlanetologiaUniversidade Estadual Paulista (Unesp)Madeira, Gustavo [UNESP]Sfair, R. [UNESP]Mourão, D. C. [UNESP]Winter, S.M. Giuliatti [UNESP]2018-12-11T16:53:05Z2018-12-11T16:53:05Z2018-04-21info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article5474-5479application/pdfhttp://dx.doi.org/10.1093/mnras/sty179Monthly Notices of the Royal Astronomical Society, v. 475, n. 4, p. 5474-5479, 2018.1365-29660035-8711http://hdl.handle.net/11449/17094610.1093/mnras/sty1792-s2.0-850460843332-s2.0-85046084333.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMonthly Notices of the Royal Astronomical Society2,3462,346info:eu-repo/semantics/openAccess2024-01-09T06:31:30Zoai:repositorio.unesp.br:11449/170946Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:34:22.850860Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Production and fate of the G ring arc particles due to Aegaeon (Saturn LIII)
title Production and fate of the G ring arc particles due to Aegaeon (Saturn LIII)
spellingShingle Production and fate of the G ring arc particles due to Aegaeon (Saturn LIII)
Madeira, Gustavo [UNESP]
Planets and satellites: rings
title_short Production and fate of the G ring arc particles due to Aegaeon (Saturn LIII)
title_full Production and fate of the G ring arc particles due to Aegaeon (Saturn LIII)
title_fullStr Production and fate of the G ring arc particles due to Aegaeon (Saturn LIII)
title_full_unstemmed Production and fate of the G ring arc particles due to Aegaeon (Saturn LIII)
title_sort Production and fate of the G ring arc particles due to Aegaeon (Saturn LIII)
author Madeira, Gustavo [UNESP]
author_facet Madeira, Gustavo [UNESP]
Sfair, R. [UNESP]
Mourão, D. C. [UNESP]
Winter, S.M. Giuliatti [UNESP]
author_role author
author2 Sfair, R. [UNESP]
Mourão, D. C. [UNESP]
Winter, S.M. Giuliatti [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Madeira, Gustavo [UNESP]
Sfair, R. [UNESP]
Mourão, D. C. [UNESP]
Winter, S.M. Giuliatti [UNESP]
dc.subject.por.fl_str_mv Planets and satellites: rings
topic Planets and satellites: rings
description The G ring arc hosts the smallest satellite of Saturn, Aegaeon, observed with a set of images sent by Cassini spacecraft. Along with Aegaeon, the arc particles are trapped in a 7:6 corotation eccentric resonance with the satellite Mimas. Due to this resonance, both Aegaeon and the arc material are confined to within 60° of corotating longitudes. The arc particles are dust grains which can have their orbital motions severely disturbed by the solar radiation force. Our numerical simulations showed that Aegaeon is responsible for depleting the arc dust population by removing them through collisions. The solar radiation force hastens these collisions by removing most of the 10 μm sized grains in less than 40 yr. Some debris released from Aegaeon's surface by meteoroid impacts can populate the arc. However, it would take 30 000 yr for Aegaeon to supply the observed amount of arc material, and so it is unlikely that Aegaeon alone is the source of dust in the arc.
publishDate 2018
dc.date.none.fl_str_mv 2018-12-11T16:53:05Z
2018-12-11T16:53:05Z
2018-04-21
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1093/mnras/sty179
Monthly Notices of the Royal Astronomical Society, v. 475, n. 4, p. 5474-5479, 2018.
1365-2966
0035-8711
http://hdl.handle.net/11449/170946
10.1093/mnras/sty179
2-s2.0-85046084333
2-s2.0-85046084333.pdf
url http://dx.doi.org/10.1093/mnras/sty179
http://hdl.handle.net/11449/170946
identifier_str_mv Monthly Notices of the Royal Astronomical Society, v. 475, n. 4, p. 5474-5479, 2018.
1365-2966
0035-8711
10.1093/mnras/sty179
2-s2.0-85046084333
2-s2.0-85046084333.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Monthly Notices of the Royal Astronomical Society
2,346
2,346
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 5474-5479
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129438945116160