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dc.contributor.author
Buie, Marc W.
dc.contributor.author
Porter, Simon B.
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Tamblyn, Peter
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Terrell, Dirk
dc.contributor.author
Parker, Alex Harrison
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Baratoux, David
dc.contributor.author
Kaire, Maram
dc.contributor.author
Leiva, Rodrigo
dc.contributor.author
Verbiscer, Anne J.
dc.contributor.author
Zangari, Amanda M.
dc.contributor.author
Colas, François
dc.contributor.author
Diop, Baidy Demba
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Samaniego, Joseph I.
dc.contributor.author
Wasserman, Lawrence H.
dc.contributor.author
Benecchi, Susan D.
dc.contributor.author
Caspi, Amir
dc.contributor.author
Gwyn, Stephen
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Kavelaars, J. J.
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Ocampo Uría, Adriana C.
dc.contributor.author
Rabassa, Jorge Oscar
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dc.contributor.author
Skrutskie, M. F.
dc.contributor.author
Soto, Alejandro
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Tanga, Paolo
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Young, Eliot F.
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Stern, S. Alan
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Andersen, Bridget C.
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Arango Pérez, Mauricio E.
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Arredondo, Anicia
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Artola, Rodolfo Alfredo
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García Migani, Esteban Andrés
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dc.date.available
2022-04-29T01:33:35Z
dc.date.issued
2020-04
dc.identifier.citation
Buie, Marc W.; Porter, Simon B.; Tamblyn, Peter; Terrell, Dirk; Parker, Alex Harrison; et al.; Size and Shape Constraints of (486958) Arrokoth from Stellar Occultations; IOP Publishing; The Astronomical Journal; 159; 4; 4-2020; 1-27
dc.identifier.issn
1538-3881
dc.identifier.uri
http://hdl.handle.net/11336/156056
dc.description.abstract
We present the results from four stellar occultations by (486958) Arrokoth, the flyby target of the New Horizons extended mission. Three of the four efforts led to positive detections of the body, and all constrained the presence of rings and other debris, finding none. Twenty-five mobile stations were deployed for 2017 June 3 and augmented by fixed telescopes. There were no positive detections from this effort. The event on 2017 July 10 was observed by the Stratospheric Observatory for Infrared Astronomy with one very short chord. Twenty-four deployed stations on 2017 July 17 resulted in five chords that clearly showed a complicated shape consistent with a contact binary with rough dimensions of 20 by 30 km for the overall outline. A visible albedo of 10% was derived from these data. Twenty-two systems were deployed for the fourth event on 2018 August 4 and resulted in two chords. The combination of the occultation data and the flyby results provides a significant refinement of the rotation period, now estimated to be 15.9380 ± 0.0005 hr. The occultation data also provided high-precision astrometric constraints on the position of the object that were crucial for supporting the navigation for the New Horizons flyby. This work demonstrates an effective method for obtaining detailed size and shape information and probing for rings and dust on distant Kuiper Belt objects as well as being an important source of positional data that can aid in spacecraft navigation that is particularly useful for small and distant bodies.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
IOP Publishing
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Kuiper belt
dc.subject
Astrometry
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Classical Kuiper belt objects
dc.subject
Stellar occultation
dc.subject.classification
Astronomía
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Size and Shape Constraints of (486958) Arrokoth from Stellar Occultations
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-03-14T21:15:53Z
dc.identifier.eissn
0004-6256
dc.journal.volume
159
dc.journal.number
4
dc.journal.pagination
1-27
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Buie, Marc W.. Southwest Research Institute.; Estados Unidos
dc.description.fil
Fil: Porter, Simon B.. Southwest Research Institute.; Estados Unidos
dc.description.fil
Fil: Tamblyn, Peter. Southwest Research Institute.; Estados Unidos
dc.description.fil
Fil: Terrell, Dirk. Southwest Research Institute.; Estados Unidos
dc.description.fil
Fil: Parker, Alex Harrison. Southwest Research Institute.; Estados Unidos
dc.description.fil
Fil: Baratoux, David. Géosciences Environnement Toulouse; Francia. Centre National de la Recherche Scientifique; Francia
dc.description.fil
Fil: Kaire, Maram. Ministry of Higher Education Research and Innovation; Senegal. Asociación Senegalesa para la Promoción de la Astronomía; Senegal
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Fil: Leiva, Rodrigo. Southwest Research Institute.; Estados Unidos
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Fil: Verbiscer, Anne J.. University of Virginia; Estados Unidos
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Fil: Zangari, Amanda M.. Southwest Research Institute.; Estados Unidos
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Fil: Colas, François. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia. Sorbonne University; Francia. Centre National de la Recherche Scientifique; Francia
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Fil: Diop, Baidy Demba. Direction de la Formation et de la Communication; Senegal
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Fil: Samaniego, Joseph I.. University of Colorado; Estados Unidos
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Fil: Wasserman, Lawrence H.. Lowell Observatory; Estados Unidos
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Fil: Benecchi, Susan D.. Planetary Science Institute; Estados Unidos
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Fil: Caspi, Amir. Southwest Research Institute.; Estados Unidos
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Fil: Gwyn, Stephen. Herzberg Astronomy and Astrophysics Research Centre; Canadá
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Fil: Kavelaars, J. J.. Herzberg Astronomy and Astrophysics Research Centre; Canadá
dc.description.fil
Fil: Ocampo Uría, Adriana C.. National Aeronautics and Space Administration; Estados Unidos
dc.description.fil
Fil: Rabassa, Jorge Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
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Fil: Skrutskie, M. F.. University of Virginia; Estados Unidos
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Fil: Soto, Alejandro. Southwest Research Institute.; Estados Unidos
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Fil: Tanga, Paolo. Université Côte d’Azur; Francia. Centre National de la Recherche Scientifique; Francia
dc.description.fil
Fil: Young, Eliot F.. Southwest Research Institute.; Estados Unidos
dc.description.fil
Fil: Stern, S. Alan. Southwest Research Institute.; Estados Unidos
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Fil: Andersen, Bridget C.. University of Virginia; Estados Unidos
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Fil: Arango Pérez, Mauricio E.. Universidad de Antioquia; Colombia
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Fil: Arredondo, Anicia. Massachusetts Institute of Technology; Estados Unidos
dc.description.fil
Fil: Artola, Rodolfo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
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Fil: García Migani, Esteban Andrés. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales. Departamento de Geofísica y Astronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina
dc.journal.title
The Astronomical Journal
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-3881/ab6ced
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.3847/1538-3881/ab6ced
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