Effects of Saturn's magnetospheric dynamics on Titan's ionosphere

Autores
Edberg, N. J. T.; Andrews, D. J.; Bertucci, Cesar; Gurnett, D. A.; Holmberg, M. K. G.; Jackman, C. M.; Kurth, W. S.; Menietti, J. D.; Opgenoorth, H. J.; Shebanits, O.; Vigren, E.; Wahlund, J. E.
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We use the Cassini Radio and Plasma Wave Science/Langmuir probe measurements of the electron density from the first 110 flybys of Titan to study how Saturn´s magnetosphere influences Titan´s ionosphere. The data is first corrected for biased sampling due to varying solar zenith angle and solar energy flux (solar cycle effects). We then present results showing that the electron density in Titan´s ionosphere, in the altitude range 1600-2400 km, is increased by about a factor of 2.5 when Titan is located on the nightside of Saturn (Saturn local time (SLT) 21-03 h) compared to when on the dayside (SLT 09-15 h). For lower altitudes (1100-1600 km) the main dividing factor for the ionospheric density is the ambient magnetospheric conditions. When Titan is located in the magnetospheric current sheet, the electron density in Titan´s ionosphere is about a factor of 1.4 higher compared to when Titan is located in the magnetospheric lobes. The factor of 1.4 increase in between sheet and lobe flybys is interpreted as an effect of increased particle impact ionization from 200 eV sheet electrons. The factor of 2.5 increase in electron density between flybys on Saturn´s nightside and dayside is suggested to be an effect of the pressure balance between thermal plus magnetic pressure in Titan´s ionosphere against the dynamic pressure and energetic particle pressure in Saturn´s magnetosphere.
Fil: Edberg, N. J. T.. University of Iowa; Estados Unidos. Swedish Institute of Space Physics; Suecia
Fil: Andrews, D. J.. Swedish Institute of Space Physics; Suecia
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: Gurnett, D. A.. University of Iowa; Estados Unidos
Fil: Holmberg, M. K. G.. Swedish Institute of Space Physics; Suecia
Fil: Jackman, C. M.. University Of Southampton; Reino Unido
Fil: Kurth, W. S.. University of Iowa; Estados Unidos
Fil: Menietti, J. D.. University Of Iowa; Estados Unidos
Fil: Opgenoorth, H. J.. Swedish Institute of Space Physics; Suecia
Fil: Shebanits, O.. Swedish Institute of Space Physics; Suecia
Fil: Vigren, E.. Swedish Institute of Space Physics; Suecia
Fil: Wahlund, J. E.. Swedish Institute of Space Physics; Suecia
Materia
CASSINI
IONOSPHERE
SATURN'S MAGNETOSPHERE
TITAN
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:11336/17843
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/17843
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effects of Saturn's magnetospheric dynamics on Titan's ionosphereEdberg, N. J. T.Andrews, D. J.Bertucci, CesarGurnett, D. A.Holmberg, M. K. G.Jackman, C. M.Kurth, W. S.Menietti, J. D.Opgenoorth, H. J.Shebanits, O.Vigren, E.Wahlund, J. E.CASSINIIONOSPHERESATURN'S MAGNETOSPHERETITANhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We use the Cassini Radio and Plasma Wave Science/Langmuir probe measurements of the electron density from the first 110 flybys of Titan to study how Saturn´s magnetosphere influences Titan´s ionosphere. The data is first corrected for biased sampling due to varying solar zenith angle and solar energy flux (solar cycle effects). We then present results showing that the electron density in Titan´s ionosphere, in the altitude range 1600-2400 km, is increased by about a factor of 2.5 when Titan is located on the nightside of Saturn (Saturn local time (SLT) 21-03 h) compared to when on the dayside (SLT 09-15 h). For lower altitudes (1100-1600 km) the main dividing factor for the ionospheric density is the ambient magnetospheric conditions. When Titan is located in the magnetospheric current sheet, the electron density in Titan´s ionosphere is about a factor of 1.4 higher compared to when Titan is located in the magnetospheric lobes. The factor of 1.4 increase in between sheet and lobe flybys is interpreted as an effect of increased particle impact ionization from 200 eV sheet electrons. The factor of 2.5 increase in electron density between flybys on Saturn´s nightside and dayside is suggested to be an effect of the pressure balance between thermal plus magnetic pressure in Titan´s ionosphere against the dynamic pressure and energetic particle pressure in Saturn´s magnetosphere.Fil: Edberg, N. J. T.. University of Iowa; Estados Unidos. Swedish Institute of Space Physics; SueciaFil: Andrews, D. J.. Swedish Institute of Space Physics; SueciaFil: 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: Gurnett, D. A.. University of Iowa; Estados UnidosFil: Holmberg, M. K. G.. Swedish Institute of Space Physics; SueciaFil: Jackman, C. M.. University Of Southampton; Reino UnidoFil: Kurth, W. S.. University of Iowa; Estados UnidosFil: Menietti, J. D.. University Of Iowa; Estados UnidosFil: Opgenoorth, H. J.. Swedish Institute of Space Physics; SueciaFil: Shebanits, O.. Swedish Institute of Space Physics; SueciaFil: Vigren, E.. Swedish Institute of Space Physics; SueciaFil: Wahlund, J. E.. Swedish Institute of Space Physics; SueciaWiley2015-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/17843Edberg, N. J. T.; Andrews, D. J.; Bertucci, Cesar; Gurnett, D. A.; Holmberg, M. K. G.; et al.; Effects of Saturn's magnetospheric dynamics on Titan's ionosphere; Wiley; Journal of Geophysical Research A: Space Physics; 120; 10; 10-2015; 8884-88982169-9380enginfo:eu-repo/semantics/altIdentifier/doi/10.1002/2015JA021373info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/2015JA021373/fullinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:25:51Zoai:ri.conicet.gov.ar:11336/17843instacron: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 14:25:51.832CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effects of Saturn's magnetospheric dynamics on Titan's ionosphere
title Effects of Saturn's magnetospheric dynamics on Titan's ionosphere
spellingShingle Effects of Saturn's magnetospheric dynamics on Titan's ionosphere
Edberg, N. J. T.
CASSINI
IONOSPHERE
SATURN'S MAGNETOSPHERE
TITAN
title_short Effects of Saturn's magnetospheric dynamics on Titan's ionosphere
title_full Effects of Saturn's magnetospheric dynamics on Titan's ionosphere
title_fullStr Effects of Saturn's magnetospheric dynamics on Titan's ionosphere
title_full_unstemmed Effects of Saturn's magnetospheric dynamics on Titan's ionosphere
title_sort Effects of Saturn's magnetospheric dynamics on Titan's ionosphere
dc.creator.none.fl_str_mv Edberg, N. J. T.
Andrews, D. J.
Bertucci, Cesar
Gurnett, D. A.
Holmberg, M. K. G.
Jackman, C. M.
Kurth, W. S.
Menietti, J. D.
Opgenoorth, H. J.
Shebanits, O.
Vigren, E.
Wahlund, J. E.
author Edberg, N. J. T.
author_facet Edberg, N. J. T.
Andrews, D. J.
Bertucci, Cesar
Gurnett, D. A.
Holmberg, M. K. G.
Jackman, C. M.
Kurth, W. S.
Menietti, J. D.
Opgenoorth, H. J.
Shebanits, O.
Vigren, E.
Wahlund, J. E.
author_role author
author2 Andrews, D. J.
Bertucci, Cesar
Gurnett, D. A.
Holmberg, M. K. G.
Jackman, C. M.
Kurth, W. S.
Menietti, J. D.
Opgenoorth, H. J.
Shebanits, O.
Vigren, E.
Wahlund, J. E.
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv CASSINI
IONOSPHERE
SATURN'S MAGNETOSPHERE
TITAN
topic CASSINI
IONOSPHERE
SATURN'S MAGNETOSPHERE
TITAN
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We use the Cassini Radio and Plasma Wave Science/Langmuir probe measurements of the electron density from the first 110 flybys of Titan to study how Saturn´s magnetosphere influences Titan´s ionosphere. The data is first corrected for biased sampling due to varying solar zenith angle and solar energy flux (solar cycle effects). We then present results showing that the electron density in Titan´s ionosphere, in the altitude range 1600-2400 km, is increased by about a factor of 2.5 when Titan is located on the nightside of Saturn (Saturn local time (SLT) 21-03 h) compared to when on the dayside (SLT 09-15 h). For lower altitudes (1100-1600 km) the main dividing factor for the ionospheric density is the ambient magnetospheric conditions. When Titan is located in the magnetospheric current sheet, the electron density in Titan´s ionosphere is about a factor of 1.4 higher compared to when Titan is located in the magnetospheric lobes. The factor of 1.4 increase in between sheet and lobe flybys is interpreted as an effect of increased particle impact ionization from 200 eV sheet electrons. The factor of 2.5 increase in electron density between flybys on Saturn´s nightside and dayside is suggested to be an effect of the pressure balance between thermal plus magnetic pressure in Titan´s ionosphere against the dynamic pressure and energetic particle pressure in Saturn´s magnetosphere.
Fil: Edberg, N. J. T.. University of Iowa; Estados Unidos. Swedish Institute of Space Physics; Suecia
Fil: Andrews, D. J.. Swedish Institute of Space Physics; Suecia
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: Gurnett, D. A.. University of Iowa; Estados Unidos
Fil: Holmberg, M. K. G.. Swedish Institute of Space Physics; Suecia
Fil: Jackman, C. M.. University Of Southampton; Reino Unido
Fil: Kurth, W. S.. University of Iowa; Estados Unidos
Fil: Menietti, J. D.. University Of Iowa; Estados Unidos
Fil: Opgenoorth, H. J.. Swedish Institute of Space Physics; Suecia
Fil: Shebanits, O.. Swedish Institute of Space Physics; Suecia
Fil: Vigren, E.. Swedish Institute of Space Physics; Suecia
Fil: Wahlund, J. E.. Swedish Institute of Space Physics; Suecia
description We use the Cassini Radio and Plasma Wave Science/Langmuir probe measurements of the electron density from the first 110 flybys of Titan to study how Saturn´s magnetosphere influences Titan´s ionosphere. The data is first corrected for biased sampling due to varying solar zenith angle and solar energy flux (solar cycle effects). We then present results showing that the electron density in Titan´s ionosphere, in the altitude range 1600-2400 km, is increased by about a factor of 2.5 when Titan is located on the nightside of Saturn (Saturn local time (SLT) 21-03 h) compared to when on the dayside (SLT 09-15 h). For lower altitudes (1100-1600 km) the main dividing factor for the ionospheric density is the ambient magnetospheric conditions. When Titan is located in the magnetospheric current sheet, the electron density in Titan´s ionosphere is about a factor of 1.4 higher compared to when Titan is located in the magnetospheric lobes. The factor of 1.4 increase in between sheet and lobe flybys is interpreted as an effect of increased particle impact ionization from 200 eV sheet electrons. The factor of 2.5 increase in electron density between flybys on Saturn´s nightside and dayside is suggested to be an effect of the pressure balance between thermal plus magnetic pressure in Titan´s ionosphere against the dynamic pressure and energetic particle pressure in Saturn´s magnetosphere.
publishDate 2015
dc.date.none.fl_str_mv 2015-10
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/11336/17843
Edberg, N. J. T.; Andrews, D. J.; Bertucci, Cesar; Gurnett, D. A.; Holmberg, M. K. G.; et al.; Effects of Saturn's magnetospheric dynamics on Titan's ionosphere; Wiley; Journal of Geophysical Research A: Space Physics; 120; 10; 10-2015; 8884-8898
2169-9380
url http://hdl.handle.net/11336/17843
identifier_str_mv Edberg, N. J. T.; Andrews, D. J.; Bertucci, Cesar; Gurnett, D. A.; Holmberg, M. K. G.; et al.; Effects of Saturn's magnetospheric dynamics on Titan's ionosphere; Wiley; Journal of Geophysical Research A: Space Physics; 120; 10; 10-2015; 8884-8898
2169-9380
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/2015JA021373
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/2015JA021373/full
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 Wiley
publisher.none.fl_str_mv Wiley
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
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score 13.22299

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