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Analysis of a superbolide from a Damocloid observed over Spain on July 13, 2012

Opened Access Analysis of a superbolide from a Damocloid observed over Spain on July 13, 2012

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Autor: Cabrera Caño, Jesús María
Madiedo, José María
Trigo Rodríguez, Josep Maria
Zamorano, Jaime
Ortiz, José L.
Sánchez de Miguel, Alejandro
Ocaña, Francisco
Izquierdo, Jaime
Departamento: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Fecha: 2013-12
Publicado en: Monthly Notices of the Royal Astronomical Society, 436 (4), 1-19.
Tipo de documento: Artículo
Resumen: A superbolide with an estimated absolute magnitude of-20±1was seen on 2012 July 13 over the centre and south of Spain. This extraordinary event, which was witnessed by numerous casual observers, was recorded in the framework of the continuous fireball monitoring and meteor spectroscopy campaign performed by the SPanish Meteor Network (SPMN). Thus, because of optimal weather conditions, the bolide was imaged from 10 meteor observing stations. Here we present the analysis of this magnificent event, which is the brightest fireball ever recorded by our team. The atmospheric trajectory of the bolide and the orbit in the Solar system of the parent meteoroid were obtained. The emission spectrum produced during the ablation of this particle is also discussed.We found that the meteoroid, which was following a Halley Type Comet orbit, was depleted in Na and had a tensile strength one order of magnitude higher than that corresponding to typical cometary materials. By means of orbital analysis to...
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Cita: Cabrera Caño, J.M., Madiedo, J.M., Trigo Rodríguez, J.M., Zamorano, J., Ortiz, J.L., Sánchez de Miguel, A.,...,Izquierdo, J. (2013). Analysis of a superbolide from a Damocloid observed over Spain on July 13, 2012. Monthly Notices of the Royal Astronomical Society, 436 (4), 1-19.
Tamaño: 281.1Kb
Formato: PDF

URI: http://hdl.handle.net/11441/64269

DOI: 10.1093/mnras/stt1845

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