Centaur 29P/Schwassmann-Wachmann 1 and its near-nucleus environment from a stellar occultation

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorObservatório Nacional (ON/MCTI)-
Autor(es): dc.contributorLaboratório Interinstitucional de e-Astronomia-LIneA-
Autor(es): dc.contributorFederal University of Technology - Paraná (PPGFA/UTFPR)-
Autor(es): dc.contributorCNRS-
Autor(es): dc.contributorUniversidade Federal do Rio de Janeiro (UFRJ)-
Autor(es): dc.contributorConsejo Superior de Investigaciones Científicas-
Autor(es): dc.contributorBritish Astronomical Association-
Autor(es): dc.contributorInstitut Polytechnique des Sciences Avancées (IPSA)-
Autor(es): dc.contributorUniv. Lille-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorPereira, C. L.-
Autor(es): dc.creatorBraga-Ribas, F.-
Autor(es): dc.creatorSicardy, B.-
Autor(es): dc.creatorMorgado, B. E.-
Autor(es): dc.creatorOrtiz, J. L.-
Autor(es): dc.creatorAssafin, M.-
Autor(es): dc.creatorMiles, R.-
Autor(es): dc.creatorDesmars, J.-
Autor(es): dc.creatorCamargo, J. I.B.-
Autor(es): dc.creatorBenedetti-Rossi, G.-
Autor(es): dc.creatorKretlow, M.-
Autor(es): dc.creatorVieira-Martins, R.-
Data de aceite: dc.date.accessioned2025-08-21T20:50:32Z-
Data de disponibilização: dc.date.available2025-08-21T20:50:32Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2025-02-27-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1098/rsta.2024.0189-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/307135-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/307135-
Descrição: dc.descriptionComets offer valuable insights into the early Solar System's conditions and processes. Stellar occultations enable detailed study of cometary nuclei typically hidden by their coma. Observing the star's light passing through the coma helps infer dust's optical depth near the nucleus and determine dust opacity detection limits. 29P/Schwassmann-Wachmann 1, a Centaur with a diameter of approximately 60 km, lies in a region transitioning from Centaurs to Jupiter-family comets. Our study presents the first-ever observed occultation by 29P, allowing in the future for a more refined orbit and thus better predictions for other occultations. The light curve reveals a solid-body detection lasting 3.65±0.05 s, corresponding to a chord length of approximately 54 km. This provides a lower limit for the object's radius, measured at 27.0±0.7 km. We identified features on both sides of the main-body occultation around 1700 km from the nucleus in the sky plane for which upper limits on apparent opacity and equivalent width were determined. Gradual dimming within 23 km of the nucleus during ingress only is interpreted as a localized dust cloud/jet above the surface with an optical depth of approximately τ=0.18. This article is part of the theme issue 'Major advances in planetary sciences thanks to stellar occultations'.-
Descrição: dc.descriptionObservatório Nacional (ON/MCTI), RJ-
Descrição: dc.descriptionLaboratório Interinstitucional de e-Astronomia-LIneA, RJ-
Descrição: dc.descriptionFederal University of Technology - Paraná (PPGFA/UTFPR), PR-
Descrição: dc.descriptionLESIA Observatoire de Paris Université PSL Sorbonne Université Université de Paris CNRS-
Descrição: dc.descriptionUniversidade Federal do Rio de Janeiro Observatório do Valongo, RJ-
Descrição: dc.descriptionInstituto de Astrofísica de Andalucía Consejo Superior de Investigaciones Científicas-
Descrição: dc.descriptionBritish Astronomical Association, Burlington House-
Descrição: dc.descriptionInstitut Polytechnique des Sciences Avancées (IPSA)-
Descrição: dc.descriptionInstitutde Mécanique Céleste et de Calcul des Éphémérides IMCCE Observatoire de Paris PSL Research University CNRS Sorbonne Universités UPMC Univ Paris06 Univ. Lille-
Descrição: dc.descriptionUNESP Sao Paulo State University Grupo de Dinamica Orbital e Planetologia, SP-
Descrição: dc.descriptionUNESP Sao Paulo State University Grupo de Dinamica Orbital e Planetologia, SP-
Idioma: dc.languageen-
Relação: dc.relationPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectCentaurs-
Palavras-chave: dc.subjectcometary coma-
Palavras-chave: dc.subjectcomets-
Palavras-chave: dc.subjectstellar occultations-
Título: dc.titleCentaur 29P/Schwassmann-Wachmann 1 and its near-nucleus environment from a stellar occultation-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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