Stellar occultations enable milliarcsecond astrometry for Trans-Neptunian objects and Centaurs

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Autor(es): dc.contributorBairro Imperial de São Cristóvão-
Autor(es): dc.contributorFederal University of Technology-Paraná (UTFPR/DAFIS)-
Autor(es): dc.contributorInstitut Polytechnique des Sciences Avancées Ipsa-
Autor(es): dc.contributorUniv. Lille-
Autor(es): dc.contributorIAA-CSIC-
Autor(es): dc.contributorSorbonne Paris Cité-
Autor(es): dc.contributorUniversidade Federal do Rio de Janeiro (UFRJ)-
Autor(es): dc.contributorUniversity of Central Florida-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorInternational Occultation Timing Association (IOTA)-
Autor(es): dc.contributorTrans-Tasman Occultation Alliance (TTOA)-
Autor(es): dc.contributorCanberra Astronomical Society-
Autor(es): dc.contributorSamford Valley Observatory (Q79)-
Autor(es): dc.contributorCoral Towers Observatory-
Autor(es): dc.contributorUniversity of Padova-
Autor(es): dc.contributorINAF-Astronomical Observatory of Padova-
Autor(es): dc.contributorJewel Box Observatory-
Autor(es): dc.contributorSonear Observatory-
Autor(es): dc.contributorUniversity of Canterbury-
Autor(es): dc.contributorAcademy of Sciences of the Czech Republic-
Autor(es): dc.contributorAstronomical Association of Queensland-
Autor(es): dc.contributorLam-
Autor(es): dc.contributorSwiss Astronomical Society-
Autor(es): dc.contributorResearch Centre for Astronomy and Earth Sciences-
Autor(es): dc.contributorEötvös Loránd University-
Autor(es): dc.contributorInstitute of Physics-
Autor(es): dc.contributorCentro de Amigos de la Astronomia Reconquista-CAAR-
Autor(es): dc.contributorJapan Occultation Information Network (JOIN)-
Autor(es): dc.contributorReedy Creek Observatory-
Autor(es): dc.contributorUniversité de Liège-
Autor(es): dc.contributorSlovak Academy of Sciences-
Autor(es): dc.contributorAdam Mickiewicz University-
Autor(es): dc.contributorSan Pedro de Atacama Celestial Explorations-SPACE-
Autor(es): dc.contributorFaculty of Mathematics and Physics-
Autor(es): dc.contributorPanamanian Observatory in San Pedro de Atacama-OPSPA-
Autor(es): dc.contributorSharif University of Technology-
Autor(es): dc.contributorRoyal Observatory-
Autor(es): dc.contributorClub d'Astronomie Luberon Sud Astro-
Autor(es): dc.contributorUniversidad de Antofagasta-
Autor(es): dc.creatorRommel, F. L.-
Autor(es): dc.creatorBraga-Ribas, F.-
Autor(es): dc.creatorDesmars, J.-
Autor(es): dc.creatorCamargo, J. I.B.-
Autor(es): dc.creatorOrtiz, J. L.-
Autor(es): dc.creatorSicardy, B.-
Autor(es): dc.creatorVieira-Martins, R.-
Autor(es): dc.creatorAssafin, M.-
Autor(es): dc.creatorSantos-Sanz, P.-
Autor(es): dc.creatorDuffard, R.-
Autor(es): dc.creatorFernández-Valenzuela, E.-
Autor(es): dc.creatorLecacheux, J.-
Autor(es): dc.creatorMorgado, B. E.-
Autor(es): dc.creatorBenedetti-Rossi, G.-
Autor(es): dc.creatorGomes-Júnior, A. R. [UNESP]-
Autor(es): dc.creatorPereira, C. L.-
Autor(es): dc.creatorHerald, D.-
Autor(es): dc.creatorHanna, W.-
Autor(es): dc.creatorBradshaw, J.-
Autor(es): dc.creatorMorales, N.-
Autor(es): dc.creatorBrimacombe, J.-
Autor(es): dc.creatorBurtovoi, A.-
Autor(es): dc.creatorCarruthers, T.-
Autor(es): dc.creatorDe Barros, J. R.-
Autor(es): dc.creatorFiori, M.-
Autor(es): dc.creatorGilmore, A.-
Autor(es): dc.creatorHooper, D.-
Autor(es): dc.creatorHornoch, K.-
Autor(es): dc.creatorJacques, C.-
Autor(es): dc.creatorJanik, T.-
Autor(es): dc.creatorKerr, S.-
Autor(es): dc.creatorKilmartin, P.-
Autor(es): dc.creatorWinkel, Jan Maarten-
Autor(es): dc.creatorNaletto, G.-
Autor(es): dc.creatorNardiello, D.-
Autor(es): dc.creatorNascimbeni, V.-
Autor(es): dc.creatorNewman, J.-
Autor(es): dc.creatorOssola, A.-
Autor(es): dc.creatorPál, A.-
Autor(es): dc.creatorPimentel, E.-
Autor(es): dc.creatorPravec, P.-
Autor(es): dc.creatorSposetti, S.-
Autor(es): dc.creatorStechina, A.-
Autor(es): dc.creatorSzakáts, R.-
Autor(es): dc.creatorUeno, Y.-
Autor(es): dc.creatorZampieri, L.-
Autor(es): dc.creatorBroughton, J.-
Autor(es): dc.creatorDunham, J. B.-
Autor(es): dc.creatorDunham, D. W.-
Autor(es): dc.creatorGault, D.-
Autor(es): dc.creatorHayamizu, T.-
Autor(es): dc.creatorHosoi, K.-
Autor(es): dc.creatorJehin, E.-
Autor(es): dc.creatorJones, R.-
Autor(es): dc.creatorKitazaki, K.-
Autor(es): dc.creatorKomž Ík, R.-
Autor(es): dc.creatorMarciniak, A.-
Autor(es): dc.creatorMaury, A.-
Autor(es): dc.creatorMikuž, H.-
Autor(es): dc.creatorNosworthy, P.-
Autor(es): dc.creatorFábrega Polleri, J.-
Autor(es): dc.creatorRahvar, S.-
Autor(es): dc.creatorSfair, R. [UNESP]-
Autor(es): dc.creatorSiqueira, P. B. [UNESP]-
Autor(es): dc.creatorSnodgrass, C.-
Autor(es): dc.creatorSogorb, P.-
Autor(es): dc.creatorTomioka, H.-
Autor(es): dc.creatorTregloan-Reed, J.-
Autor(es): dc.creatorWinter, O. C. [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:52:45Z-
Data de disponibilização: dc.date.available2022-02-22T00:52:45Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1051/0004-6361/202039054-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/208216-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/208216-
Descrição: dc.descriptionContext. Trans-Neptunian objects (TNOs) and Centaurs are remnants of our planetary system formation, and their physical properties have invaluable information for evolutionary theories. Stellar occultation is a ground-based method for studying these distant small bodies and has presented exciting results. These observations can provide precise profiles of the involved body, allowing an accurate determination of its size and shape. Aims. The goal is to show that even single-chord detections of TNOs allow us to measure their milliarcsecond astrometric positions in the reference frame of the Gaia second data release (DR2). Accurate ephemerides can then be generated, allowing predictions of stellar occultations with much higher reliability. Methods. We analyzed data from various stellar occultation detections to obtain astrometric positions of the involved bodies. The events published before the Gaia era were updated so that the Gaia DR2 stellar catalog is the reference, thus providing accurate positions. Events with detection from one or two different sites (single or double chord) were analyzed to determine the event duration. Previously determined sizes were used to calculate the position of the object center and its corresponding error with respectto the detected chord and the International Celestial Reference System propagated Gaia DR2 star position. Results. We derive 37 precise astrometric positions for 19 TNOs and four Centaurs. Twenty-one of these events are presented here for the first time. Although about 68% of our results are based on single-chord detection, most have intrinsic precision at the submilliarcsecond level. Lower limits on the diameter of bodies such as Sedna, 2002 KX14, and Echeclus, and also shape constraints on 2002 VE95, 2003 FF128, and 2005 TV189 are presented as valuable byproducts. Conclusions. Using the Gaia DR2 catalog, we show that even a single detection of a stellar occultation allows improving the object ephemeris significantly, which in turn enables predicting a future stellar occultation with high accuracy. Observational campaigns can be efficiently organized with this help, and may provide a full physical characterization of the involved object, or even the study of topographic features such as satellites or rings.-
Descrição: dc.descriptionObservatório Nacional/MCTIC Bairro Imperial de São Cristóvão, R. General José Cristino 77-
Descrição: dc.descriptionFederal University of Technology-Paraná (UTFPR/DAFIS), Rua Sete de Setembro-
Descrição: dc.descriptionLaboratório Interinstitucional de E-Astronomia-LIneA and Inct Do E-Universo Bairro Imperial de São Cristóvão, Rua Gal. José Cristino 77-
Descrição: dc.descriptionInstitut Polytechnique des Sciences Avancées Ipsa, 63 boulevard de Brandebourg-
Descrição: dc.descriptionInstitut de Mécanique Céleste et de Calcul des Éphémérides Imcce Observatoire de Paris Psl Research University Cnrs Sorbonne Universités Upmc Univ Paris 06 Univ. Lille, 77, Av. Denfert-Rochereau-
Descrição: dc.descriptionInstituto de Astrofísica de Andalucía IAA-CSIC, Glorieta de la Astronomía s/n-
Descrição: dc.descriptionLesia Observatoire de Paris Université Psl Cnrs Sorbonne Université Univ. Paris Diderot Sorbonne Paris Cité, 5 place Jules Janssen-
Descrição: dc.descriptionObservatório Do Valongo/UFRJ, Ladeira Pedro Antônio 43-
Descrição: dc.descriptionFlorida Space Institute University of Central Florida, 12354 Research Parkway-
Descrição: dc.descriptionUNESP-São Paulo State University Grupo de Dinâmica Orbital e Planetologia-
Descrição: dc.descriptionInternational Occultation Timing Association (IOTA), P.O. Box 423-
Descrição: dc.descriptionTrans-Tasman Occultation Alliance (TTOA), PO Box 3181-
Descrição: dc.descriptionCanberra Astronomical Society-
Descrição: dc.descriptionSamford Valley Observatory (Q79)-
Descrição: dc.descriptionCoral Towers Observatory-
Descrição: dc.descriptionCentre of Studies and Activities for Space (CISAS) 'G. Colombo' University of Padova, Via Venezia 15-
Descrição: dc.descriptionINAF-Astronomical Observatory of Padova, Vicolo dell'Osservatorio 5-
Descrição: dc.descriptionJewel Box Observatory, 69 Falcon St-
Descrição: dc.descriptionSonear Observatory-
Descrição: dc.descriptionDepartment of Physics and Astronomy 'G. Galilei' University of Padova, Via F. Marzolo 8-
Descrição: dc.descriptionMount John University Observatory University of Canterbury, PO Box 56-
Descrição: dc.descriptionAstronomical Institute Academy of Sciences of the Czech Republic, Fričova 298-
Descrição: dc.descriptionAstronomical Association of Queensland, 5 Curtis Street-
Descrição: dc.descriptionAix Marseille Univ Cnrs Cnes Lam-
Descrição: dc.descriptionSOTAS-Stellar Occultation Timing Association Switzerland Swiss Astronomical Society-
Descrição: dc.descriptionKonkoly Observatory Research Centre for Astronomy and Earth Sciences, Konkoly-Thege Miklós út 15-17-
Descrição: dc.descriptionEötvös Loránd University Department of Astronomy, Pázmány Péter sétány 1/A-
Descrição: dc.descriptionElte Eötvös Loránd University Institute of Physics, Pázmány Péter sétány 1/A-
Descrição: dc.descriptionCentro de Amigos de la Astronomia Reconquista-CAAR-
Descrição: dc.descriptionJapan Occultation Information Network (JOIN)-
Descrição: dc.descriptionReedy Creek Observatory-
Descrição: dc.descriptionStar Institute Université de Liège, Allée du 6 août, 19C-
Descrição: dc.descriptionAstronomical Institute Slovak Academy of Sciences-
Descrição: dc.descriptionAstronomical Observatory Institute Faculty of Physics Adam Mickiewicz University-
Descrição: dc.descriptionSan Pedro de Atacama Celestial Explorations-SPACE-
Descrição: dc.descriptionUniversity of Ljubljana Faculty of Mathematics and Physics, Jadranska 19-
Descrição: dc.descriptionPanamanian Observatory in San Pedro de Atacama-OPSPA-
Descrição: dc.descriptionDepartment of Physics Sharif University of Technology, PO Box 11155-9161-
Descrição: dc.descriptionInstitute for Astronomy University of Edinburgh Royal Observatory-
Descrição: dc.descriptionClub d'Astronomie Luberon Sud Astro-
Descrição: dc.descriptionCentro de Astronomía (CITEVA) Universidad de Antofagasta, Avenida U. de Antofagasta-
Descrição: dc.descriptionUNESP-São Paulo State University Grupo de Dinâmica Orbital e Planetologia-
Idioma: dc.languageen-
Relação: dc.relationAstronomy and Astrophysics-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAstrometry-
Palavras-chave: dc.subjectKuiper belt: general-
Palavras-chave: dc.subjectMinor planets, asteroids: general-
Palavras-chave: dc.subjectOccultations-
Título: dc.titleStellar occultations enable milliarcsecond astrometry for Trans-Neptunian objects and Centaurs-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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