Tenuous solar winds: Insights on solar wind–magnetosphere interactions

Autores
Farrugia, C. J.; Gratton, Fausto Tulio Livio; Jordanova, V. K.; Matsui, H.; Muehlbachler, S.; Torbert, R.; Ogilvie, K.; Singer, H. J.
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
During solar cycle 23 quasi-dropouts of the solar wind (density < 1 cm_3) were observed. These tenuous winds allow us to probe properties of the magnetosphere and its coupling to the solar wind which would otherwise be obscured by the effect of high density. We focus on five areas which provided new insights into the response of geospace to solar wind variations: (i) the magnetospheric magnetic cofiguration; (ii) the polar rain; (iii) dayside flux erosion; (iv) magnetosheath waves; and (v) ring current constants. We find: (i) the geostationary field had dipolar strength and was inclined by £ 5°  to the dipolar direction; (ii) The solar wind strahl, and consequently the polar rain, were intensified; (iii) The depression of the geostationary field (DBGS) due to dayside flux erosion could be measured and was related to IMF BZ by DBGS = 2:8 + 2:3 Bz (nT); (iv) Right-hand electromagnetic ion cyclotron waves were excited alone in the magnetosheath and were generated directly from the temperature anisotropy of the solar wind; (v) Ring and magnetopause currents decreased to asymptotic values of 5 nT and 3 nT, respectively, which are substantially smaller than quiet-time values obtained from statistics.
Fil: Farrugia, C. J.. University of New Hampshire; Estados Unidos
Fil: Gratton, Fausto Tulio Livio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; Argentina
Fil: Jordanova, V. K.. Laboratorio Nacional de Los Álamos; Estados Unidos
Fil: Matsui, H.. University of New Hampshire; Estados Unidos
Fil: Muehlbachler, S.. Max-Planck Institut fuer Sonnensystemforschung; Alemania
Fil: Torbert, R.. University of New Hampshire; Estados Unidos
Fil: Ogilvie, K.. Goddard Space Flight Center; Estados Unidos
Fil: Singer, H. J.. Space Weather Prediction Center; Estados Unidos
Materia
SOLAR
WIND
MAGNETOSPHERE
INTERACTION
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:11336/103292
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Tenuous solar winds: Insights on solar wind–magnetosphere interactionsFarrugia, C. J.Gratton, Fausto Tulio LivioJordanova, V. K.Matsui, H.Muehlbachler, S.Torbert, R.Ogilvie, K.Singer, H. J.SOLARWINDMAGNETOSPHEREINTERACTIONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1During solar cycle 23 quasi-dropouts of the solar wind (density < 1 cm_3) were observed. These tenuous winds allow us to probe properties of the magnetosphere and its coupling to the solar wind which would otherwise be obscured by the effect of high density. We focus on five areas which provided new insights into the response of geospace to solar wind variations: (i) the magnetospheric magnetic cofiguration; (ii) the polar rain; (iii) dayside flux erosion; (iv) magnetosheath waves; and (v) ring current constants. We find: (i) the geostationary field had dipolar strength and was inclined by £ 5°  to the dipolar direction; (ii) The solar wind strahl, and consequently the polar rain, were intensified; (iii) The depression of the geostationary field (DBGS) due to dayside flux erosion could be measured and was related to IMF BZ by DBGS = 2:8 + 2:3 Bz (nT); (iv) Right-hand electromagnetic ion cyclotron waves were excited alone in the magnetosheath and were generated directly from the temperature anisotropy of the solar wind; (v) Ring and magnetopause currents decreased to asymptotic values of 5 nT and 3 nT, respectively, which are substantially smaller than quiet-time values obtained from statistics.Fil: Farrugia, C. J.. University of New Hampshire; Estados UnidosFil: Gratton, Fausto Tulio Livio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; ArgentinaFil: Jordanova, V. K.. Laboratorio Nacional de Los Álamos; Estados UnidosFil: Matsui, H.. University of New Hampshire; Estados UnidosFil: Muehlbachler, S.. Max-Planck Institut fuer Sonnensystemforschung; AlemaniaFil: Torbert, R.. University of New Hampshire; Estados UnidosFil: Ogilvie, K.. Goddard Space Flight Center; Estados UnidosFil: Singer, H. J.. Space Weather Prediction Center; Estados UnidosElsevier2008-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/103292Farrugia, C. J.; Gratton, Fausto Tulio Livio; Jordanova, V. K.; Matsui, H.; Muehlbachler, S.; et al.; Tenuous solar winds: Insights on solar wind–magnetosphere interactions; Elsevier; Journal of Atmospheric and Solar-Terrestrial Physics; 70; 2-4; 2-2008; 371-3760021-91691364-6826CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S1364682607002921info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jastp.2007.08.032info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:09:27Zoai:ri.conicet.gov.ar:11336/103292instacron: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 15:09:27.368CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Tenuous solar winds: Insights on solar wind–magnetosphere interactions
title Tenuous solar winds: Insights on solar wind–magnetosphere interactions
spellingShingle Tenuous solar winds: Insights on solar wind–magnetosphere interactions
Farrugia, C. J.
SOLAR
WIND
MAGNETOSPHERE
INTERACTION
title_short Tenuous solar winds: Insights on solar wind–magnetosphere interactions
title_full Tenuous solar winds: Insights on solar wind–magnetosphere interactions
title_fullStr Tenuous solar winds: Insights on solar wind–magnetosphere interactions
title_full_unstemmed Tenuous solar winds: Insights on solar wind–magnetosphere interactions
title_sort Tenuous solar winds: Insights on solar wind–magnetosphere interactions
dc.creator.none.fl_str_mv Farrugia, C. J.
Gratton, Fausto Tulio Livio
Jordanova, V. K.
Matsui, H.
Muehlbachler, S.
Torbert, R.
Ogilvie, K.
Singer, H. J.
author Farrugia, C. J.
author_facet Farrugia, C. J.
Gratton, Fausto Tulio Livio
Jordanova, V. K.
Matsui, H.
Muehlbachler, S.
Torbert, R.
Ogilvie, K.
Singer, H. J.
author_role author
author2 Gratton, Fausto Tulio Livio
Jordanova, V. K.
Matsui, H.
Muehlbachler, S.
Torbert, R.
Ogilvie, K.
Singer, H. J.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv SOLAR
WIND
MAGNETOSPHERE
INTERACTION
topic SOLAR
WIND
MAGNETOSPHERE
INTERACTION
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 solar cycle 23 quasi-dropouts of the solar wind (density < 1 cm_3) were observed. These tenuous winds allow us to probe properties of the magnetosphere and its coupling to the solar wind which would otherwise be obscured by the effect of high density. We focus on five areas which provided new insights into the response of geospace to solar wind variations: (i) the magnetospheric magnetic cofiguration; (ii) the polar rain; (iii) dayside flux erosion; (iv) magnetosheath waves; and (v) ring current constants. We find: (i) the geostationary field had dipolar strength and was inclined by £ 5°  to the dipolar direction; (ii) The solar wind strahl, and consequently the polar rain, were intensified; (iii) The depression of the geostationary field (DBGS) due to dayside flux erosion could be measured and was related to IMF BZ by DBGS = 2:8 + 2:3 Bz (nT); (iv) Right-hand electromagnetic ion cyclotron waves were excited alone in the magnetosheath and were generated directly from the temperature anisotropy of the solar wind; (v) Ring and magnetopause currents decreased to asymptotic values of 5 nT and 3 nT, respectively, which are substantially smaller than quiet-time values obtained from statistics.
Fil: Farrugia, C. J.. University of New Hampshire; Estados Unidos
Fil: Gratton, Fausto Tulio Livio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; Argentina
Fil: Jordanova, V. K.. Laboratorio Nacional de Los Álamos; Estados Unidos
Fil: Matsui, H.. University of New Hampshire; Estados Unidos
Fil: Muehlbachler, S.. Max-Planck Institut fuer Sonnensystemforschung; Alemania
Fil: Torbert, R.. University of New Hampshire; Estados Unidos
Fil: Ogilvie, K.. Goddard Space Flight Center; Estados Unidos
Fil: Singer, H. J.. Space Weather Prediction Center; Estados Unidos
description During solar cycle 23 quasi-dropouts of the solar wind (density < 1 cm_3) were observed. These tenuous winds allow us to probe properties of the magnetosphere and its coupling to the solar wind which would otherwise be obscured by the effect of high density. We focus on five areas which provided new insights into the response of geospace to solar wind variations: (i) the magnetospheric magnetic cofiguration; (ii) the polar rain; (iii) dayside flux erosion; (iv) magnetosheath waves; and (v) ring current constants. We find: (i) the geostationary field had dipolar strength and was inclined by £ 5°  to the dipolar direction; (ii) The solar wind strahl, and consequently the polar rain, were intensified; (iii) The depression of the geostationary field (DBGS) due to dayside flux erosion could be measured and was related to IMF BZ by DBGS = 2:8 + 2:3 Bz (nT); (iv) Right-hand electromagnetic ion cyclotron waves were excited alone in the magnetosheath and were generated directly from the temperature anisotropy of the solar wind; (v) Ring and magnetopause currents decreased to asymptotic values of 5 nT and 3 nT, respectively, which are substantially smaller than quiet-time values obtained from statistics.
publishDate 2008
dc.date.none.fl_str_mv 2008-02
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/11336/103292
Farrugia, C. J.; Gratton, Fausto Tulio Livio; Jordanova, V. K.; Matsui, H.; Muehlbachler, S.; et al.; Tenuous solar winds: Insights on solar wind–magnetosphere interactions; Elsevier; Journal of Atmospheric and Solar-Terrestrial Physics; 70; 2-4; 2-2008; 371-376
0021-9169
1364-6826
CONICET Digital
CONICET
url http://hdl.handle.net/11336/103292
identifier_str_mv Farrugia, C. J.; Gratton, Fausto Tulio Livio; Jordanova, V. K.; Matsui, H.; Muehlbachler, S.; et al.; Tenuous solar winds: Insights on solar wind–magnetosphere interactions; Elsevier; Journal of Atmospheric and Solar-Terrestrial Physics; 70; 2-4; 2-2008; 371-376
0021-9169
1364-6826
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S1364682607002921
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jastp.2007.08.032
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
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score 13.22299

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