Orbit, meteoroid size, and cosmic ray exposure history of the Aguas Zarcas CM2 breccia

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Autor(es): dc.contributorSETI Institute-
Autor(es): dc.contributorNASA Ames Research Center-
Autor(es): dc.contributorUniversidad de Costa Rica-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorLANAMME-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorParis Observatory-
Autor(es): dc.contributorAdvanced Technology Center-
Autor(es): dc.contributorArizona State University-
Autor(es): dc.contributorUniversity of New Mexico-
Autor(es): dc.contributorUniversity of California at Davis-
Autor(es): dc.contributorETH Zürich-
Autor(es): dc.contributorUniversity of California-
Autor(es): dc.contributorPurdue University-
Autor(es): dc.contributorLaboratori Nazionali del Gran Sasso-
Autor(es): dc.contributorSWRI-
Autor(es): dc.creatorJenniskens, Peter-
Autor(es): dc.creatorSoto, Gerardo J.-
Autor(es): dc.creatorGoncalves Silva, Gabriel-
Autor(es): dc.creatorLücke, Oscar-
Autor(es): dc.creatorMadrigal, Pilar-
Autor(es): dc.creatorBallestero, Tatiana-
Autor(es): dc.creatorSalas Matamoros, Carolina-
Autor(es): dc.creatorRuiz Cubillo, Paulo-
Autor(es): dc.creatorCardozo Mourao, Daniela-
Autor(es): dc.creatorCabo Winter, Othon-
Autor(es): dc.creatorSfair, Rafael-
Autor(es): dc.creatorTillier, Clemens E.-
Autor(es): dc.creatorAlbers, Jim-
Autor(es): dc.creatorGarvie, Laurence A. J.-
Autor(es): dc.creatorZiegler, Karen-
Autor(es): dc.creatorYin, Qing-Zhu-
Autor(es): dc.creatorSanborn, Matthew E.-
Autor(es): dc.creatorBusemann, Henner-
Autor(es): dc.creatorRiebe, My E. I.-
Autor(es): dc.creatorWelten, Kees C.-
Autor(es): dc.creatorCaffee, Marc W.-
Autor(es): dc.creatorLaubenstein, Matthias-
Autor(es): dc.creatorRobertson, Darrel K.-
Autor(es): dc.creatorNesvorny, David-
Data de aceite: dc.date.accessioned2025-08-21T21:49:15Z-
Data de disponibilização: dc.date.available2025-08-21T21:49:15Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1111/maps.14337-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/306796-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/306796-
Descrição: dc.descriptionThe Aguas Zarcas (Costa Rica) CM2 carbonaceous chondrite fell during nighttime in April 2019. Security and dashboard camera videos of the meteor were analyzed to provide a trajectory, light curve, and orbit of the meteoroid. The trajectory was near vertical, 81° steep, arriving from an ~109° (WNW) direction with an apparent entry speed of 14.6 ± 0.6 km s−1. The meteoroid penetrated to ~25 km altitude (5 MPa dynamic pressure), where the surviving mass shattered, producing a flare that was detected by the Geostationary Lightning Mappers on GOES-16 and GOES-17. The cosmogenic radionuclides were analyzed in three recovered meteorites by either gamma-ray spectroscopy or accelerator mass spectrometry (AMS), while noble gas concentrations and isotopic compositions were measured in the same fragment that was analyzed by AMS. From this, the pre-atmospheric size of the meteoroid and its cosmic ray exposure age were determined. The studied samples came from a few cm up to 30 cm deep in an object with an original diameter of ~60 cm that was ejected from its parent body 2.0 ± 0.2 Ma ago. The ejected material had an argon retention age of 2.9 Ga. The object was delivered most likely by the 3:1 or 5:2 mean motion resonances and, without subsequent fragmentation, approached the Earth from a low i < 2.8° inclined orbit with a perihelion distance q = 0.98 AU close to the Earth's orbit. The steep entry trajectory and high strength resulted in deep penetration in the atmosphere and a relatively large fraction of surviving mass.-
Descrição: dc.descriptionSETI Institute-
Descrição: dc.descriptionNASA Ames Research Center-
Descrição: dc.descriptionEscuela Centroamericana de Geología Universidad de Costa Rica-
Descrição: dc.descriptionInstitute of Chemistry University of Sao Paulo, SP-
Descrição: dc.descriptionCentro de Investigaciones Espaciales Escuela de Fisica Universidad de Costa Rica-
Descrição: dc.descriptionLabaoratorio Nacional de Materiales y Modelos Estructurales LANAMME-
Descrição: dc.descriptionGrupo de Dinamica Orbital e Planetologia Sao Paulo State University—UNESP-
Descrição: dc.descriptionLaboratory for Instrumentation and Research in Astrophysics Paris Observatory-
Descrição: dc.descriptionLockheed Martin Advanced Technology Center-
Descrição: dc.descriptionBuseck Center for Meteorite Studies School of Earth & Space Exploration Arizona State University-
Descrição: dc.descriptionInstitute of Meteoritics University of New Mexico-
Descrição: dc.descriptionDepartment of Earth and Planetary Sciences University of California at Davis-
Descrição: dc.descriptionInstitute of Geochemistry and Petrology ETH Zürich-
Descrição: dc.descriptionSpace Sciences Laboratory University of California-
Descrição: dc.descriptionDepartment of Physics and Astronomy/PRIME Laboratory Purdue University-
Descrição: dc.descriptionDepartment of Earth Atmospheric and Planetary Sciences Purdue University-
Descrição: dc.descriptionIstituto Nazionale di Fisica Nucleare Laboratori Nazionali del Gran Sasso-
Descrição: dc.descriptionDepartment of Space Studies SWRI-
Descrição: dc.descriptionGrupo de Dinamica Orbital e Planetologia Sao Paulo State University—UNESP-
Idioma: dc.languageen-
Relação: dc.relationMeteoritics and Planetary Science-
???dc.source???: dc.sourceScopus-
Título: dc.titleOrbit, meteoroid size, and cosmic ray exposure history of the Aguas Zarcas CM2 breccia-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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