Exploring the Recycling Model of Phobos Formation: Rubble-pile Satellites
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.3847/1538-3881/acbf53 http://hdl.handle.net/11449/247025 |
Resumo: | Phobos is the target of the return sample mission Martian Moons eXploration by JAXA that will analyze in great detail the physical and compositional properties of the satellite from orbit, from the surface, and in terrestrial laboratories, giving clues about its formation. Some models propose that Phobos and Deimos were formed after a giant impact giving rise to an extended debris disk. Assuming that Phobos formed from a cascade of disruptions and reaccretions of several parent bodies in this disk, and that they are all characterized by a low material cohesion, Hesselbrock & Minton showed that a recycling process may happen during the assembling of Phobos, by which Phobos’s parents are destroyed into a Roche-interior ring and reaccreted several times. In this paper, we explore the recycling model in detail and pay particular attention to the characteristics of the disk using 1D models of disk/satellite interactions. In agreement with previous studies, we confirm that, if Phobos’s parent bodies are gravitational aggregates (rubble piles), then the recycling process does occur. However, Phobos should be accompanied today by a Roche-interior ring. Furthermore, the characteristics of the ring are not reconcilable with today’s observations of Mars’ environment, which put stringent constraints on the existence of a ring around Mars. The recycling mechanism may or may not have occurred at the Roche limit for an old moon population, depending on the internal cohesion. However, the Phobos we see today cannot be the outcome of such a recycling process. |
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Exploring the Recycling Model of Phobos Formation: Rubble-pile SatellitesPhobos is the target of the return sample mission Martian Moons eXploration by JAXA that will analyze in great detail the physical and compositional properties of the satellite from orbit, from the surface, and in terrestrial laboratories, giving clues about its formation. Some models propose that Phobos and Deimos were formed after a giant impact giving rise to an extended debris disk. Assuming that Phobos formed from a cascade of disruptions and reaccretions of several parent bodies in this disk, and that they are all characterized by a low material cohesion, Hesselbrock & Minton showed that a recycling process may happen during the assembling of Phobos, by which Phobos’s parents are destroyed into a Roche-interior ring and reaccreted several times. In this paper, we explore the recycling model in detail and pay particular attention to the characteristics of the disk using 1D models of disk/satellite interactions. In agreement with previous studies, we confirm that, if Phobos’s parent bodies are gravitational aggregates (rubble piles), then the recycling process does occur. However, Phobos should be accompanied today by a Roche-interior ring. Furthermore, the characteristics of the ring are not reconcilable with today’s observations of Mars’ environment, which put stringent constraints on the existence of a ring around Mars. The recycling mechanism may or may not have occurred at the Roche limit for an old moon population, depending on the internal cohesion. However, the Phobos we see today cannot be the outcome of such a recycling process.Centre National d’Etudes SpatialesConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)FP7 International CooperationHorizon 2020Université de Paris Institut de Physique du Globe de Paris CNRSGrupo de Dinâmica Orbital e Planetologia São Paulo State University (UNESP), 333 Av. Dr. Ariberto Pereira da Cunha SPDepartment of Aerospace Engineering University of MarylUniversité Côte d‘Azur Observatoire de la Côte d‘Azur CNRS Laboratoire LagrangeISAS/JAXA, KanagawaEarth-Life Science Institute Tokyo Institute of Technology, Meguro-kuGrupo de Dinâmica Orbital e Planetologia São Paulo State University (UNESP), 333 Av. Dr. Ariberto Pereira da Cunha SPCNRSUniversidade Estadual Paulista (UNESP)University of MarylLaboratoire LagrangeISAS/JAXATokyo Institute of TechnologyMadeira, Gustavo [UNESP]Charnoz, SébastienZhang, YunHyodo, RyukiMichel, PatrickGenda, HidenoriGiuliatti Winter, Silvia [UNESP]2023-07-29T12:57:01Z2023-07-29T12:57:01Z2023-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.3847/1538-3881/acbf53Astronomical Journal, v. 165, n. 4, 2023.0004-6256http://hdl.handle.net/11449/24702510.3847/1538-3881/acbf532-s2.0-85150495266Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAstronomical Journalinfo:eu-repo/semantics/openAccess2023-07-29T12:57:01Zoai:repositorio.unesp.br:11449/247025Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:55:32.578774Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Exploring the Recycling Model of Phobos Formation: Rubble-pile Satellites |
title |
Exploring the Recycling Model of Phobos Formation: Rubble-pile Satellites |
spellingShingle |
Exploring the Recycling Model of Phobos Formation: Rubble-pile Satellites Madeira, Gustavo [UNESP] |
title_short |
Exploring the Recycling Model of Phobos Formation: Rubble-pile Satellites |
title_full |
Exploring the Recycling Model of Phobos Formation: Rubble-pile Satellites |
title_fullStr |
Exploring the Recycling Model of Phobos Formation: Rubble-pile Satellites |
title_full_unstemmed |
Exploring the Recycling Model of Phobos Formation: Rubble-pile Satellites |
title_sort |
Exploring the Recycling Model of Phobos Formation: Rubble-pile Satellites |
author |
Madeira, Gustavo [UNESP] |
author_facet |
Madeira, Gustavo [UNESP] Charnoz, Sébastien Zhang, Yun Hyodo, Ryuki Michel, Patrick Genda, Hidenori Giuliatti Winter, Silvia [UNESP] |
author_role |
author |
author2 |
Charnoz, Sébastien Zhang, Yun Hyodo, Ryuki Michel, Patrick Genda, Hidenori Giuliatti Winter, Silvia [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
CNRS Universidade Estadual Paulista (UNESP) University of Maryl Laboratoire Lagrange ISAS/JAXA Tokyo Institute of Technology |
dc.contributor.author.fl_str_mv |
Madeira, Gustavo [UNESP] Charnoz, Sébastien Zhang, Yun Hyodo, Ryuki Michel, Patrick Genda, Hidenori Giuliatti Winter, Silvia [UNESP] |
description |
Phobos is the target of the return sample mission Martian Moons eXploration by JAXA that will analyze in great detail the physical and compositional properties of the satellite from orbit, from the surface, and in terrestrial laboratories, giving clues about its formation. Some models propose that Phobos and Deimos were formed after a giant impact giving rise to an extended debris disk. Assuming that Phobos formed from a cascade of disruptions and reaccretions of several parent bodies in this disk, and that they are all characterized by a low material cohesion, Hesselbrock & Minton showed that a recycling process may happen during the assembling of Phobos, by which Phobos’s parents are destroyed into a Roche-interior ring and reaccreted several times. In this paper, we explore the recycling model in detail and pay particular attention to the characteristics of the disk using 1D models of disk/satellite interactions. In agreement with previous studies, we confirm that, if Phobos’s parent bodies are gravitational aggregates (rubble piles), then the recycling process does occur. However, Phobos should be accompanied today by a Roche-interior ring. Furthermore, the characteristics of the ring are not reconcilable with today’s observations of Mars’ environment, which put stringent constraints on the existence of a ring around Mars. The recycling mechanism may or may not have occurred at the Roche limit for an old moon population, depending on the internal cohesion. However, the Phobos we see today cannot be the outcome of such a recycling process. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T12:57:01Z 2023-07-29T12:57:01Z 2023-04-01 |
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/10.3847/1538-3881/acbf53 Astronomical Journal, v. 165, n. 4, 2023. 0004-6256 http://hdl.handle.net/11449/247025 10.3847/1538-3881/acbf53 2-s2.0-85150495266 |
url |
http://dx.doi.org/10.3847/1538-3881/acbf53 http://hdl.handle.net/11449/247025 |
identifier_str_mv |
Astronomical Journal, v. 165, n. 4, 2023. 0004-6256 10.3847/1538-3881/acbf53 2-s2.0-85150495266 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Astronomical Journal |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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 |
|
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1808129473964408832 |