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On the activity of the γ -Ursae Minorids meteoroid stream in 2010 and 2011

Opened Access On the activity of the γ -Ursae Minorids meteoroid stream in 2010 and 2011

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Autor: Madiedo Gil, José María
Trigo-Rodríguez, Josep Maria
Lyytinen, Esko
Dergham, Joan
Pujols, Pep
Ortiz, José L.
Cabrera Caño, Jesús María
Departamento: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Fecha: 2013
Publicado en: Monthly Notices of the Royal Astronomical Society, 431 (2), 1678-1685.
Tipo de documento: Artículo
Resumen: Accurate orbital data obtained for the recently discovered γ -Ursae Minorids meteoroid stream during the 2010 and 2011 Spanish Meteor Network and Finnish Fireball Network observing ampaigns are presented. In particular, we focus on an outburst detected in 2010 and on the analysis of the first emission spectrum recorded for a member of this meteoroid stream. An array of high-sensitivity CCD video devices operating from different locations in Spain and Finland was used to perform this study. We have obtained precise trajectory, radiant and orbital information for seven members of this stream. Considerations about its likely parent body based on orbital dissimilarity criteria are made. We also present an estimation of the tensile strength for these meteoroids and a unique emission spectrum of a γ -Ursae inorid fireball that reveals that the main rocky components have chondritic abundances.
Cita: Madiedo Gil, J.M., Trigo-Rodríguez, J.M., Lyytinen, E., Dergham, J., Pujols, P., Ortiz, J.L. y Cabrera Caño, J. (2013). On the activity of the γ -Ursae Minorids meteoroid stream in 2010 and 2011. Monthly Notices of the Royal Astronomical Society, 431 (2), 1678-1685.
Tamaño: 1.946Mb
Formato: PDF

URI: https://hdl.handle.net/11441/71511

DOI: 10.1093/mnras/stt288

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