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The Geminid meteoroid stream as a potential meteorite dropper: A case study

Opened Access The Geminid meteoroid stream as a potential meteorite dropper: A case study

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Autor: Madiedo, José María
Trigo Rodríguez, Josep Maria
Castro Tirado, Alberto J.
Ortiz, José L.
Cabrera Caño, Jesús María
Departamento: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Fecha: 2013-12
Publicado en: Monthly Notices of the Royal Astronomical Society, 436 (3), 2818-2823.
Tipo de documento: Artículo
Resumen: A Geminid fireball with an absolute magnitude of -13 was observed over the south of Spain on 2009 December 15. This extraordinarily bright event (the brightest Geminid ever recorded by our team) was imaged from two meteor observing stations operated by the SPanish Meteor Network (SPMN). The bolide exhibited fast and quasi-periodic variations in brightness, a behaviour typically associated with the rotation of the parent meteoroid. The inferred tensile strength of this particle was found to be significantly higher than the typical values obtained for Geminid meteoroids. The fireball penetrated in the atmosphere till a final height of about 25 km above the ground level and a non-zero terminal mass was calculated at the ending point of the luminous trajectory. In this way, the observational evidence points to the existence of a population of meteoroids in the higher end of the Geminid mass distribution capable of producing meteorites. From the relative chemical abundances inferred from t...
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Cita: Madiedo, J.M., Trigo Rodríguez, J.M., Castro Tirado, A.J., Ortiz, J.L. y Cabrera Caño, J.M. (2013). The Geminid meteoroid stream as a potential meteorite dropper: A case study. Monthly Notices of the Royal Astronomical Society, 436 (3), 2818-2823.
Tamaño: 740.2Kb
Formato: PDF

URI: http://hdl.handle.net/11441/64227

DOI: 10.1093/mnras/stt1777

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