Titan's highly dynamic magnetic environment: A systematic survey of Cassini magnetometer observations from flybys TA-T62
- Autores
- Simon, Sven; Wennmacher, Alexandre; Neubauer, Fritz M.; Bertucci, Cesar; Kriegel, Hendrik; Saur, Joachim; Russell, Christopher T.; Dougherty, Michele K.
- Año de publicación
- 2010
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We analyze the variability of the ambient magnetic field near Titan during Cassini encounters TA–T62 (October 2004–October 2009). Cassini magnetometer (MAG) data show that the moon's magnetic environment is strongly affected by its proximity to Saturn's warped and highly dynamic magnetodisk. In the nightside sector of Saturn's magnetosphere, the magnetic field near Titan is controlled by intense vertical flapping motions of the magnetodisk current sheet, alternately exposing the moon to radially stretched lobe-type fields and to more dipolar, but highly distorted current sheet fields. In southern summer, when most of the Cassini encounters took place, the magnetodisk current sheet was on average located above Titan's orbital plane. However, around equinox in August 2009, the distortions of Titan's magnetic environment due to the rapidly moving current sheet reached a maximum, thus suggesting that the equilibrium position of the sheet at that time was significantly closer to the moon's orbital plane. In the dayside magnetosphere, the formation of the magnetodisk lobes is partially suppressed due to the proximity of the magnetopause. Therefore, during most encounters that took place near noon, Titan was embedded in highly distorted current sheet fields. Within the framework of this study, we not only provide a systematic classification of all Titan flybys between October 2004 and October 2009 as lobe-type or current sheet scenarios, but we also calculate the magnetospheric background field near Titan's orbit whenever possible. Our results show that so far, there is not a single Cassini flyby that matches the frequently applied picture of Titan's plasma interaction from the pre-Cassini era (background field homogeneous, stationary and perpendicular to the moon's orbital plane). The time scales upon which the ambient magnetospheric field close to Titan undergoes significant changes range between only a few minutes and up to several hours. The implications for the development of numerical models for Titan's local plasma interaction are discussed as well.
Fil: Simon, Sven. University of Cologne; Alemania
Fil: Wennmacher, Alexandre. University of Cologne; Alemania
Fil: Neubauer, Fritz M.. University of Cologne; Alemania
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: Kriegel, Hendrik. University of California; Estados Unidos
Fil: Saur, Joachim. University of Cologne; Alemania
Fil: Russell, Christopher T.. University of California; Estados Unidos
Fil: Dougherty, Michele K.. Imperial College London; Reino Unido - Materia
-
Titan
Saturn'S Magnetosphere
Magnetodisk Current Sheet And Lobes
Plasma Interaction with Unmagnetized Bodies - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/20156
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Titan's highly dynamic magnetic environment: A systematic survey of Cassini magnetometer observations from flybys TA-T62Simon, SvenWennmacher, AlexandreNeubauer, Fritz M.Bertucci, CesarKriegel, HendrikSaur, JoachimRussell, Christopher T.Dougherty, Michele K.TitanSaturn'S MagnetosphereMagnetodisk Current Sheet And LobesPlasma Interaction with Unmagnetized Bodieshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We analyze the variability of the ambient magnetic field near Titan during Cassini encounters TA–T62 (October 2004–October 2009). Cassini magnetometer (MAG) data show that the moon's magnetic environment is strongly affected by its proximity to Saturn's warped and highly dynamic magnetodisk. In the nightside sector of Saturn's magnetosphere, the magnetic field near Titan is controlled by intense vertical flapping motions of the magnetodisk current sheet, alternately exposing the moon to radially stretched lobe-type fields and to more dipolar, but highly distorted current sheet fields. In southern summer, when most of the Cassini encounters took place, the magnetodisk current sheet was on average located above Titan's orbital plane. However, around equinox in August 2009, the distortions of Titan's magnetic environment due to the rapidly moving current sheet reached a maximum, thus suggesting that the equilibrium position of the sheet at that time was significantly closer to the moon's orbital plane. In the dayside magnetosphere, the formation of the magnetodisk lobes is partially suppressed due to the proximity of the magnetopause. Therefore, during most encounters that took place near noon, Titan was embedded in highly distorted current sheet fields. Within the framework of this study, we not only provide a systematic classification of all Titan flybys between October 2004 and October 2009 as lobe-type or current sheet scenarios, but we also calculate the magnetospheric background field near Titan's orbit whenever possible. Our results show that so far, there is not a single Cassini flyby that matches the frequently applied picture of Titan's plasma interaction from the pre-Cassini era (background field homogeneous, stationary and perpendicular to the moon's orbital plane). The time scales upon which the ambient magnetospheric field close to Titan undergoes significant changes range between only a few minutes and up to several hours. The implications for the development of numerical models for Titan's local plasma interaction are discussed as well.Fil: Simon, Sven. University of Cologne; AlemaniaFil: Wennmacher, Alexandre. University of Cologne; AlemaniaFil: Neubauer, Fritz M.. University of Cologne; AlemaniaFil: 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: Kriegel, Hendrik. University of California; Estados UnidosFil: Saur, Joachim. University of Cologne; AlemaniaFil: Russell, Christopher T.. University of California; Estados UnidosFil: Dougherty, Michele K.. Imperial College London; Reino UnidoElsevier2010-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/20156Simon, Sven; Wennmacher, Alexandre; Neubauer, Fritz M.; Bertucci, Cesar; Kriegel, Hendrik; et al.; Titan's highly dynamic magnetic environment: A systematic survey of Cassini magnetometer observations from flybys TA-T62; Elsevier; Planetary and Space Science; 58; 10; 8-2010; 1230-12510032-0633CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.pss.2010.04.021info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0032063310001339info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:03:26Zoai:ri.conicet.gov.ar:11336/20156instacron: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:34982025-09-29 10:03:26.477CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Titan's highly dynamic magnetic environment: A systematic survey of Cassini magnetometer observations from flybys TA-T62 |
title |
Titan's highly dynamic magnetic environment: A systematic survey of Cassini magnetometer observations from flybys TA-T62 |
spellingShingle |
Titan's highly dynamic magnetic environment: A systematic survey of Cassini magnetometer observations from flybys TA-T62 Simon, Sven Titan Saturn'S Magnetosphere Magnetodisk Current Sheet And Lobes Plasma Interaction with Unmagnetized Bodies |
title_short |
Titan's highly dynamic magnetic environment: A systematic survey of Cassini magnetometer observations from flybys TA-T62 |
title_full |
Titan's highly dynamic magnetic environment: A systematic survey of Cassini magnetometer observations from flybys TA-T62 |
title_fullStr |
Titan's highly dynamic magnetic environment: A systematic survey of Cassini magnetometer observations from flybys TA-T62 |
title_full_unstemmed |
Titan's highly dynamic magnetic environment: A systematic survey of Cassini magnetometer observations from flybys TA-T62 |
title_sort |
Titan's highly dynamic magnetic environment: A systematic survey of Cassini magnetometer observations from flybys TA-T62 |
dc.creator.none.fl_str_mv |
Simon, Sven Wennmacher, Alexandre Neubauer, Fritz M. Bertucci, Cesar Kriegel, Hendrik Saur, Joachim Russell, Christopher T. Dougherty, Michele K. |
author |
Simon, Sven |
author_facet |
Simon, Sven Wennmacher, Alexandre Neubauer, Fritz M. Bertucci, Cesar Kriegel, Hendrik Saur, Joachim Russell, Christopher T. Dougherty, Michele K. |
author_role |
author |
author2 |
Wennmacher, Alexandre Neubauer, Fritz M. Bertucci, Cesar Kriegel, Hendrik Saur, Joachim Russell, Christopher T. Dougherty, Michele K. |
author2_role |
author author author author author author author |
dc.subject.none.fl_str_mv |
Titan Saturn'S Magnetosphere Magnetodisk Current Sheet And Lobes Plasma Interaction with Unmagnetized Bodies |
topic |
Titan Saturn'S Magnetosphere Magnetodisk Current Sheet And Lobes Plasma Interaction with Unmagnetized Bodies |
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 analyze the variability of the ambient magnetic field near Titan during Cassini encounters TA–T62 (October 2004–October 2009). Cassini magnetometer (MAG) data show that the moon's magnetic environment is strongly affected by its proximity to Saturn's warped and highly dynamic magnetodisk. In the nightside sector of Saturn's magnetosphere, the magnetic field near Titan is controlled by intense vertical flapping motions of the magnetodisk current sheet, alternately exposing the moon to radially stretched lobe-type fields and to more dipolar, but highly distorted current sheet fields. In southern summer, when most of the Cassini encounters took place, the magnetodisk current sheet was on average located above Titan's orbital plane. However, around equinox in August 2009, the distortions of Titan's magnetic environment due to the rapidly moving current sheet reached a maximum, thus suggesting that the equilibrium position of the sheet at that time was significantly closer to the moon's orbital plane. In the dayside magnetosphere, the formation of the magnetodisk lobes is partially suppressed due to the proximity of the magnetopause. Therefore, during most encounters that took place near noon, Titan was embedded in highly distorted current sheet fields. Within the framework of this study, we not only provide a systematic classification of all Titan flybys between October 2004 and October 2009 as lobe-type or current sheet scenarios, but we also calculate the magnetospheric background field near Titan's orbit whenever possible. Our results show that so far, there is not a single Cassini flyby that matches the frequently applied picture of Titan's plasma interaction from the pre-Cassini era (background field homogeneous, stationary and perpendicular to the moon's orbital plane). The time scales upon which the ambient magnetospheric field close to Titan undergoes significant changes range between only a few minutes and up to several hours. The implications for the development of numerical models for Titan's local plasma interaction are discussed as well. Fil: Simon, Sven. University of Cologne; Alemania Fil: Wennmacher, Alexandre. University of Cologne; Alemania Fil: Neubauer, Fritz M.. University of Cologne; Alemania 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: Kriegel, Hendrik. University of California; Estados Unidos Fil: Saur, Joachim. University of Cologne; Alemania Fil: Russell, Christopher T.. University of California; Estados Unidos Fil: Dougherty, Michele K.. Imperial College London; Reino Unido |
description |
We analyze the variability of the ambient magnetic field near Titan during Cassini encounters TA–T62 (October 2004–October 2009). Cassini magnetometer (MAG) data show that the moon's magnetic environment is strongly affected by its proximity to Saturn's warped and highly dynamic magnetodisk. In the nightside sector of Saturn's magnetosphere, the magnetic field near Titan is controlled by intense vertical flapping motions of the magnetodisk current sheet, alternately exposing the moon to radially stretched lobe-type fields and to more dipolar, but highly distorted current sheet fields. In southern summer, when most of the Cassini encounters took place, the magnetodisk current sheet was on average located above Titan's orbital plane. However, around equinox in August 2009, the distortions of Titan's magnetic environment due to the rapidly moving current sheet reached a maximum, thus suggesting that the equilibrium position of the sheet at that time was significantly closer to the moon's orbital plane. In the dayside magnetosphere, the formation of the magnetodisk lobes is partially suppressed due to the proximity of the magnetopause. Therefore, during most encounters that took place near noon, Titan was embedded in highly distorted current sheet fields. Within the framework of this study, we not only provide a systematic classification of all Titan flybys between October 2004 and October 2009 as lobe-type or current sheet scenarios, but we also calculate the magnetospheric background field near Titan's orbit whenever possible. Our results show that so far, there is not a single Cassini flyby that matches the frequently applied picture of Titan's plasma interaction from the pre-Cassini era (background field homogeneous, stationary and perpendicular to the moon's orbital plane). The time scales upon which the ambient magnetospheric field close to Titan undergoes significant changes range between only a few minutes and up to several hours. The implications for the development of numerical models for Titan's local plasma interaction are discussed as well. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-08 |
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/11336/20156 Simon, Sven; Wennmacher, Alexandre; Neubauer, Fritz M.; Bertucci, Cesar; Kriegel, Hendrik; et al.; Titan's highly dynamic magnetic environment: A systematic survey of Cassini magnetometer observations from flybys TA-T62; Elsevier; Planetary and Space Science; 58; 10; 8-2010; 1230-1251 0032-0633 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/20156 |
identifier_str_mv |
Simon, Sven; Wennmacher, Alexandre; Neubauer, Fritz M.; Bertucci, Cesar; Kriegel, Hendrik; et al.; Titan's highly dynamic magnetic environment: A systematic survey of Cassini magnetometer observations from flybys TA-T62; Elsevier; Planetary and Space Science; 58; 10; 8-2010; 1230-1251 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/doi/10.1016/j.pss.2010.04.021 info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0032063310001339 |
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 |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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1844613850505150464 |
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13.070432 |