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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/103292
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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 Técnicas2025-09-29T10:12:24Zoai: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:34982025-09-29 10:12:24.241CONICET 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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1844614030351663104 |
score |
13.070432 |