(130) Elektra Delta - on the stability of the new third moonlet

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorEberhard Karls Universität Tübingen-
Autor(es): dc.contributorUniversidad Carlos III de Madrid-
Autor(es): dc.contributorKiruna-
Autor(es): dc.creatorValvano, G.-
Autor(es): dc.creatorOliveira, R. Machado-
Autor(es): dc.creatorWinter, O. C.-
Autor(es): dc.creatorSfair, R.-
Autor(es): dc.creatorBorderes-Motta, G.-
Data de aceite: dc.date.accessioned2025-08-21T17:14:45Z-
Data de disponibilização: dc.date.available2025-08-21T17:14:45Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1093/mnras/stad1322-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/250049-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/250049-
Descrição: dc.descriptionThe aim of this work is to verify the stability of the proposed orbital solutions for the third moonlet (Delta) taking into account a realistic gravitational potential for the central body of the quadruple system (Alpha). We also aim to estimate the location and size of a stability region inside the orbit of Gamma. First, we created a set of test particles with intervals of semimajor axis, eccentricities, and inclinations that covers the region interior to the orbit of Gamma, including the proposed orbit of Delta and a wide region around it. We considered three different models for the gravitational potential of Alpha: irregular polyhedron, ellipsoidal body, and oblate body. For a second scenario, Delta was considered a massive spherical body and Alpha an irregular polyhedron. Beta and Gamma were assumed as spherical massive bodies in both scenarios. The simulations showed that a large region of space is almost fully stable only when Alpha was modelled simply as an oblate body. For the scenario with Delta as a massive body, the results did not change from those as mass-less particles. Beta and Gamma do not play any relevant role in the dynamics of particles interior to the orbit of Gamma. Delta's predicted orbital elements are fully unstable and far from the nearest stable region. The primary instability source is Alpha's elongated shape. Therefore, in the determination of the orbital elements of Delta, it must be taken into account the gravitational potential of Alpha assuming, at least, an ellipsoidal shape.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionEcumenical Project for International Cooperation-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionDeutsche Stiftung für Herzforschung-
Descrição: dc.descriptionGrupo de Dinâmica Orbital e Planetologia São Paulo State University UNESP, Guaratinguetá-
Descrição: dc.descriptionInstitut für Astronomie und Astrophysik Eberhard Karls Universität Tübingen-
Descrição: dc.descriptionBioengineering and Aerospace Engineering Department Universidad Carlos III de Madrid, Leganés-
Descrição: dc.descriptionSwedish Institute of Space Physics IRF Kiruna-
Descrição: dc.descriptionGrupo de Dinâmica Orbital e Planetologia São Paulo State University UNESP, Guaratinguetá-
Descrição: dc.descriptionFAPESP: 2016/24561-0-
Descrição: dc.descriptionFAPESP: 2019/23963-5-
Descrição: dc.descriptionFAPESP: 2022/01678-0-
Descrição: dc.descriptionCNPq: 305210/2018-1-
Descrição: dc.descriptionDeutsche Stiftung für Herzforschung: 446102036-
Descrição: dc.descriptionCAPES: 88887.310463/2018-00-
Formato: dc.format6196-6202-
Idioma: dc.languageen-
Relação: dc.relationMonthly Notices of the Royal Astronomical Society-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectasteroids: general-
Palavras-chave: dc.subjectcelestial mechanics-
Palavras-chave: dc.subjectminor planets-
Palavras-chave: dc.subjectplanets and satellites: dynamical evolution and stability-
Título: dc.title(130) Elektra Delta - on the stability of the new third moonlet-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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