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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Detalhes bibliográficos
Autores: Ortiz Moreno, José Luis, Madiedo Gil, José María, Morales, Nicolás, Santos Sanz, P., Aceituno, F. J.
Formato: artículo
Fecha de publicación:2015
País:España
Recursos:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:inglés
OAI Identifier:oai:ariasmontano.uhu.es:10272/11196
Acesso em linha:http://hdl.handle.net/10272/11196
Access Level:acceso abierto
Palavra-chave: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 Moreno, José LuisMadiedo Gil, José MaríaMorales, NicolásSantos Sanz, P.Aceituno, F. J.Meteorites, 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.Oxford University Press20152015-01-0120152015-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10272/11196reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:ariasmontano.uhu.es:10272/111962026-06-02T14:58:11Z
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 Moreno, 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 Moreno, José Luis
Madiedo Gil, José María
Morales, Nicolás
Santos Sanz, P.
Aceituno, F. J.
author Ortiz Moreno, José Luis
author_facet Ortiz Moreno, José Luis
Madiedo Gil, José María
Morales, Nicolás
Santos Sanz, P.
Aceituno, F. J.
author_role author
author2 Madiedo Gil, José María
Morales, Nicolás
Santos Sanz, P.
Aceituno, F. J.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv
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.
publishDate 2015
dc.date.none.fl_str_mv 2015
2015-01-01
2015
2015-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10272/11196
url http://hdl.handle.net/10272/11196
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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