Lunar impact flashes from geminids: Analysis of luminous efficiencies and the flux of large meteoroids on earth

We analyse lunar impact flashes recorded by our team during runs in December 2007, 2011, 2013 and 2014. In total, 12 impact flashes with magnitudes ranging between 7.1 and 9.3 in V band were identified. From these, nine events could be linked to the Geminid stream. Using these observations, the rati...

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Detalles Bibliográficos
Autores: Ortiz, José Luis, Madiedo, J. M., Morales, Nicolás, Santos Sanz, Pablo, Aceituno, Francisco José
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/389234
Acceso en línea:http://hdl.handle.net/10261/389234
Access Level:acceso abierto
Palabra clave:Meteorites, meteors, meteoroids
Moon
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spelling Lunar impact flashes from geminids: Analysis of luminous efficiencies and the flux of large meteoroids on earthOrtiz, José LuisMadiedo, J. M.Morales, NicolásSantos Sanz, PabloAceituno, Francisco JoséMeteorites, meteors, meteoroidsMoonWe analyse lunar impact flashes recorded by our team during runs in December 2007, 2011, 2013 and 2014. In total, 12 impact flashes with magnitudes ranging between 7.1 and 9.3 in V band were identified. From these, nine events could be linked to the Geminid stream. Using these observations, the ratio of luminous energy emitted in the flashes with respect to the kinetic energy of the impactors for meteoroids of the Geminid stream is estimated. By making use of the known Geminids meteoroid flux on Earth we found this ratio to be 2.1 × 10-3 on average. We compare this luminous efficiency with other estimations derived in the past for other meteoroid streams and also compare it with other estimations that we present here for the first time by making use of crater diameter measurements. We think that the luminous efficiency has to be revised downwards, not upwards, at least for sporadic impacts. This implies an increase in the influx of kilogram-sized and larger bodies on Earth that has been derived thus far through the lunar impact flash monitoring technique. © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.Funds from the Proyecto de Excelencia de la Junta de Andalucía, J.A. 2012-FQM1776 and from FEDER are acknowledged.Peer reviewedOxford University PressJunta de AndalucíaEuropean CommissionConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2025202520152025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/389234reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1093/mnras/stv1921Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3892342026-05-22T06:33:51Z
dc.title.none.fl_str_mv Lunar impact flashes from geminids: Analysis of luminous efficiencies and the flux of large meteoroids on earth
title Lunar impact flashes from geminids: Analysis of luminous efficiencies and the flux of large meteoroids on earth
spellingShingle Lunar impact flashes from geminids: Analysis of luminous efficiencies and the flux of large meteoroids on earth
Ortiz, José Luis
Meteorites, meteors, meteoroids
Moon
title_short Lunar impact flashes from geminids: Analysis of luminous efficiencies and the flux of large meteoroids on earth
title_full Lunar impact flashes from geminids: Analysis of luminous efficiencies and the flux of large meteoroids on earth
title_fullStr Lunar impact flashes from geminids: Analysis of luminous efficiencies and the flux of large meteoroids on earth
title_full_unstemmed Lunar impact flashes from geminids: Analysis of luminous efficiencies and the flux of large meteoroids on earth
title_sort Lunar impact flashes from geminids: Analysis of luminous efficiencies and the flux of large meteoroids on earth
dc.creator.none.fl_str_mv Ortiz, José Luis
Madiedo, J. M.
Morales, Nicolás
Santos Sanz, Pablo
Aceituno, Francisco José
author Ortiz, José Luis
author_facet Ortiz, José Luis
Madiedo, J. M.
Morales, Nicolás
Santos Sanz, Pablo
Aceituno, Francisco José
author_role author
author2 Madiedo, J. M.
Morales, Nicolás
Santos Sanz, Pablo
Aceituno, Francisco José
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Junta de Andalucía
European Commission
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Meteorites, meteors, meteoroids
Moon
topic Meteorites, meteors, meteoroids
Moon
description We analyse lunar impact flashes recorded by our team during runs in December 2007, 2011, 2013 and 2014. In total, 12 impact flashes with magnitudes ranging between 7.1 and 9.3 in V band were identified. From these, nine events could be linked to the Geminid stream. Using these observations, the ratio of luminous energy emitted in the flashes with respect to the kinetic energy of the impactors for meteoroids of the Geminid stream is estimated. By making use of the known Geminids meteoroid flux on Earth we found this ratio to be 2.1 × 10-3 on average. We compare this luminous efficiency with other estimations derived in the past for other meteoroid streams and also compare it with other estimations that we present here for the first time by making use of crater diameter measurements. We think that the luminous efficiency has to be revised downwards, not upwards, at least for sporadic impacts. This implies an increase in the influx of kilogram-sized and larger bodies on Earth that has been derived thus far through the lunar impact flash monitoring technique. © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society.
publishDate 2015
dc.date.none.fl_str_mv 2015
2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/389234
url http://hdl.handle.net/10261/389234
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1093/mnras/stv1921
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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