Structured ionospheric outflow during the Cassini T55–T59 Titan flybys

Autores
Edberg, N. J. T.; Ågren, K.; Wahlund, J. E.; Morooka, M. W.; Andrews, D. J.; Cowley, S. W. H.; Wellbrock, A.; Coates, A. J.; Bertucci, Cesar; Dougherty, M. K.
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
During the final three of the five consecutive and similar Cassini Titan flybys T55–T59 we observe a region characterized by high plasma densities (electron densities of 1–8 cm3 ) in the tail/nightside of Titan. This region is observed progressively farther downtail from pass to pass and is interpreted as a plume of ionospheric plasma escaping Titan, which appears steady in both location and time. The ions in this plasma plume are moving in the direction away from Titan and are a mixture of both light and heavy ions with composition revealing that their origin are in Titan’s ionosphere, while the electrons are more isotropically distributed. Magnetic field measurements indicate the presence of a current sheet at the inner edge of this region. We discuss the mechanisms behind this outflow, and suggest that it could be caused by ambipolar diffusion, magnetic moment pumping or dispersive Alfve´n waves.
Fil: Edberg, N. J. T.. Swedish Institute of Space Physics; Suecia
Fil: Ågren, K.. Swedish Institute of Space Physics; Suecia
Fil: Wahlund, J. E.. Swedish Institute of Space Physics; Suecia
Fil: Morooka, M. W.. Swedish Institute of Space Physics; Suecia
Fil: Andrews, D. J.. University of Leicester; Reino Unido
Fil: Cowley, S. W. H.. University of Leicester; Reino Unido
Fil: Wellbrock, A.. University College London; Estados Unidos
Fil: Coates, A. J.. University College London; Estados Unidos
Fil: Bertucci, Cesar. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Dougherty, M. K.. Imperial College London; Reino Unido
Materia
Cassini
Titan
Atmospheric Escape
Ionosphere
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/19989
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Structured ionospheric outflow during the Cassini T55–T59 Titan flybysEdberg, N. J. T.Ågren, K.Wahlund, J. E.Morooka, M. W.Andrews, D. J.Cowley, S. W. H.Wellbrock, A.Coates, A. J.Bertucci, CesarDougherty, M. K.CassiniTitanAtmospheric EscapeIonospherehttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1During the final three of the five consecutive and similar Cassini Titan flybys T55–T59 we observe a region characterized by high plasma densities (electron densities of 1–8 cm3 ) in the tail/nightside of Titan. This region is observed progressively farther downtail from pass to pass and is interpreted as a plume of ionospheric plasma escaping Titan, which appears steady in both location and time. The ions in this plasma plume are moving in the direction away from Titan and are a mixture of both light and heavy ions with composition revealing that their origin are in Titan’s ionosphere, while the electrons are more isotropically distributed. Magnetic field measurements indicate the presence of a current sheet at the inner edge of this region. We discuss the mechanisms behind this outflow, and suggest that it could be caused by ambipolar diffusion, magnetic moment pumping or dispersive Alfve´n waves.Fil: Edberg, N. J. T.. Swedish Institute of Space Physics; SueciaFil: Ågren, K.. Swedish Institute of Space Physics; SueciaFil: Wahlund, J. E.. Swedish Institute of Space Physics; SueciaFil: Morooka, M. W.. Swedish Institute of Space Physics; SueciaFil: Andrews, D. J.. University of Leicester; Reino UnidoFil: Cowley, S. W. H.. University of Leicester; Reino UnidoFil: Wellbrock, A.. University College London; Estados UnidosFil: Coates, A. J.. University College London; Estados UnidosFil: Bertucci, Cesar. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Dougherty, M. K.. Imperial College London; Reino UnidoElsevier2011-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/19989Edberg, N. J. T.; Ågren, K.; Wahlund, J. E.; Morooka, M. W.; Andrews, D. J.; et al.; Structured ionospheric outflow during the Cassini T55–T59 Titan flybys; Elsevier; Planetary and Space Science; 59; 8; 6-2011; 788-7970032-0633CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0032063311000948info:eu-repo/semantics/altIdentifier/doi/10.1016/j.pss.2011.03.007info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:25:43Zoai:ri.conicet.gov.ar:11336/19989instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:25:43.633CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Structured ionospheric outflow during the Cassini T55–T59 Titan flybys
title Structured ionospheric outflow during the Cassini T55–T59 Titan flybys
spellingShingle Structured ionospheric outflow during the Cassini T55–T59 Titan flybys
Edberg, N. J. T.
Cassini
Titan
Atmospheric Escape
Ionosphere
title_short Structured ionospheric outflow during the Cassini T55–T59 Titan flybys
title_full Structured ionospheric outflow during the Cassini T55–T59 Titan flybys
title_fullStr Structured ionospheric outflow during the Cassini T55–T59 Titan flybys
title_full_unstemmed Structured ionospheric outflow during the Cassini T55–T59 Titan flybys
title_sort Structured ionospheric outflow during the Cassini T55–T59 Titan flybys
dc.creator.none.fl_str_mv Edberg, N. J. T.
Ågren, K.
Wahlund, J. E.
Morooka, M. W.
Andrews, D. J.
Cowley, S. W. H.
Wellbrock, A.
Coates, A. J.
Bertucci, Cesar
Dougherty, M. K.
author Edberg, N. J. T.
author_facet Edberg, N. J. T.
Ågren, K.
Wahlund, J. E.
Morooka, M. W.
Andrews, D. J.
Cowley, S. W. H.
Wellbrock, A.
Coates, A. J.
Bertucci, Cesar
Dougherty, M. K.
author_role author
author2 Ågren, K.
Wahlund, J. E.
Morooka, M. W.
Andrews, D. J.
Cowley, S. W. H.
Wellbrock, A.
Coates, A. J.
Bertucci, Cesar
Dougherty, M. K.
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Cassini
Titan
Atmospheric Escape
Ionosphere
topic Cassini
Titan
Atmospheric Escape
Ionosphere
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv During the final three of the five consecutive and similar Cassini Titan flybys T55–T59 we observe a region characterized by high plasma densities (electron densities of 1–8 cm3 ) in the tail/nightside of Titan. This region is observed progressively farther downtail from pass to pass and is interpreted as a plume of ionospheric plasma escaping Titan, which appears steady in both location and time. The ions in this plasma plume are moving in the direction away from Titan and are a mixture of both light and heavy ions with composition revealing that their origin are in Titan’s ionosphere, while the electrons are more isotropically distributed. Magnetic field measurements indicate the presence of a current sheet at the inner edge of this region. We discuss the mechanisms behind this outflow, and suggest that it could be caused by ambipolar diffusion, magnetic moment pumping or dispersive Alfve´n waves.
Fil: Edberg, N. J. T.. Swedish Institute of Space Physics; Suecia
Fil: Ågren, K.. Swedish Institute of Space Physics; Suecia
Fil: Wahlund, J. E.. Swedish Institute of Space Physics; Suecia
Fil: Morooka, M. W.. Swedish Institute of Space Physics; Suecia
Fil: Andrews, D. J.. University of Leicester; Reino Unido
Fil: Cowley, S. W. H.. University of Leicester; Reino Unido
Fil: Wellbrock, A.. University College London; Estados Unidos
Fil: Coates, A. J.. University College London; Estados Unidos
Fil: Bertucci, Cesar. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Dougherty, M. K.. Imperial College London; Reino Unido
description During the final three of the five consecutive and similar Cassini Titan flybys T55–T59 we observe a region characterized by high plasma densities (electron densities of 1–8 cm3 ) in the tail/nightside of Titan. This region is observed progressively farther downtail from pass to pass and is interpreted as a plume of ionospheric plasma escaping Titan, which appears steady in both location and time. The ions in this plasma plume are moving in the direction away from Titan and are a mixture of both light and heavy ions with composition revealing that their origin are in Titan’s ionosphere, while the electrons are more isotropically distributed. Magnetic field measurements indicate the presence of a current sheet at the inner edge of this region. We discuss the mechanisms behind this outflow, and suggest that it could be caused by ambipolar diffusion, magnetic moment pumping or dispersive Alfve´n waves.
publishDate 2011
dc.date.none.fl_str_mv 2011-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/19989
Edberg, N. J. T.; Ågren, K.; Wahlund, J. E.; Morooka, M. W.; Andrews, D. J.; et al.; Structured ionospheric outflow during the Cassini T55–T59 Titan flybys; Elsevier; Planetary and Space Science; 59; 8; 6-2011; 788-797
0032-0633
CONICET Digital
CONICET
url http://hdl.handle.net/11336/19989
identifier_str_mv Edberg, N. J. T.; Ågren, K.; Wahlund, J. E.; Morooka, M. W.; Andrews, D. J.; et al.; Structured ionospheric outflow during the Cassini T55–T59 Titan flybys; Elsevier; Planetary and Space Science; 59; 8; 6-2011; 788-797
0032-0633
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0032063311000948
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.pss.2011.03.007
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846083401224814592
score 13.22299

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