Show simple item record

dc.contributor.authorMadiedo Gil, José María 
dc.contributor.authorTrigo Rodríguez, Josep María
dc.contributor.authorKonovalova, N.
dc.contributor.authorWilliams, I. P.
dc.contributor.authorCastro Tirado, Alberto J.
dc.contributor.authorOrtiz Moreno, José Luis
dc.contributor.authorCabrera Caño, Jesús
dc.identifier.citationMadiedo Gil, J.M., Trigo Rodríguez, J.M., Konovalova, N., Williams, I.P., Castro Tirado, A.J., Ortiz Moreno, J.L., Cabrera Caño, J.: "The 2011 October Draconids outburst – II. Meteoroid chemical abundances from fireball spectroscopy". Monthly Notices of the Royal Astronomical Society. Vol. 433, págs. 571-580, (2013). ISSN 0035-8711
dc.identifier.issn1365-2966 (electrónico)
dc.description.abstractOn October 8, 2011 the Earth crossed dust trails ejected from comet 21P/Giacobini-Zinner in the late 19th and early 20th Century. This gave rise to an outburst in the activity of the October Draconid meteor shower, and an international team was organized to analyze this event. The SPanish Meteor Network (SPMN) joined this initiative and recorded the October Draconids by means of low light level CCD cameras. In addition, spectroscopic observations were carried out. Tens of multi-station meteor trails were recorded, including an extraordinarily bright October Draconid fireball (absolute mag. -10.5) that was simultaneously imaged from three SPMN meteor observing stations located in Andalusia. Its spectrum was obtained, showing a clear evolution in the relative intensity of emission lines as the fireball penetrated deeper into the atmosphere. Here we focus on the analysis of this remarkable spectrum, but also discuss the atmospheric trajectory, atmospheric penetration, and orbital data computed for this bolide which was probably released during 21P/Giacobini-Zinner return to perihelion in 1907. The spectrum is discussed together with the tensile strength for the October Draconid meteoroids. The chemical profile evolution of the main rocky elements for this extremely bright bolide is compared with the elemental abundances obtained for 5 October Draconid fireballs also recorded during our spectroscopic campaign but observed only at a single station. Significant chemical heterogeneity between the small meteoroids is found as we should expect for cometary aggregates being formed by diverse dust components.en_US
dc.description.sponsorshipWe acknowledge support from the Spanish Ministry of Science and Innovation (projects AYA2009-13227, AYA2009-14000-C03-01 and AYA2011-26522), Junta de Andalucia (project P09-FQM-4555) and CSIC (grant # 201050I043).
dc.publisherOxford University Pressen_US
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.subject.otherComets: individual: 21P/Giacobini-Zinneren_US
dc.subject.otherMeteors, meteoroidsen_US
dc.titleThe 2011 October Draconids outburst – II. Meteoroid chemical abundances from fireball spectroscopyen_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/Spanish Ministry of Science and Innovation AYSpanish Ministry of Science and Innovation [AYA2009-13227, AYA2009-14000-C03-01, AYA2011-26522 A2009-13227] AYA2009-14000-C03-01 AYA2011-26522
dc.relation.projectIDinfo:eu-repo/grantAgreement/Junta de Andalucia [P09-FQM-4555]

Files in this item

This item appears in the following Collection(s)

Show simple item record

Atribución-NoComercial-SinDerivadas 3.0 España
Except where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 España

Copyright © 2008-2010. ARIAS MONTANO. Repositorio Institucional de la Universidad de Huelva
Contact Us | Send Feedback |