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dc.contributor.author
Ruffenach, A.
dc.contributor.author
Lavraud, B.
dc.contributor.author
Farrugia, C. J.
dc.contributor.author
Démoulin, Pascal
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dc.contributor.author
Dasso, Sergio Ricardo
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dc.contributor.author
Owens, M. J.
dc.contributor.author
Sauvaud, J. A.
dc.contributor.author
Rouillard, A. P.
dc.contributor.author
Lynnyk, A.
dc.contributor.author
Foullon, C.
dc.contributor.author
Savani, N. P.
dc.contributor.author
Luhmann, J. G.
dc.contributor.author
Galvin, A. B.
dc.date.available
2017-05-19T21:52:34Z
dc.date.issued
2015-01
dc.identifier.citation
Ruffenach, A.; Lavraud, B.; Farrugia, C. J.; Démoulin, Pascal; Dasso, Sergio Ricardo; et al.; Statistical study of magnetic cloud erosion by magnetic reconnection; Wiley; Journal Of Geophysical Research; 120; 1; 1-2015; 1-18
dc.identifier.issn
0148-0227
dc.identifier.uri
http://hdl.handle.net/11336/16802
dc.description.abstract
Several recent studies suggest that magnetic reconnection is able to erode ubstantial amounts of the outer magnetic flux of interplanetary magnetic clouds (MCs) as they propagate in the heliosphere. We quantify and provide a broader context to this process, starting from 263 tabulated interplanetary coronal
mass ejections, including MCs, observed over a time period covering 17 years and at a distance of 1 AU from the Sun with Wind (1995–2008) and the two STEREO (2009–2012) spacecraft. Based on several quality factors, including careful determination of the MC boundaries and main magnetic flux rope axes, an analysis of the azimuthal flux imbalance expected from erosion by magnetic reconnection was performed on a subset of 50 MCs. The results suggest that MCs may be eroded at the front or at rear and in similar proportions, with a significant average erosion of about 40% of the total azimuthal magnetic flux. We also searched for in situ signatures of magnetic reconnection causing erosion at the front and rear boundaries of these MCs. Nearly ~30% of the selected MC boundaries show reconnection signatures. Given that observations were acquired only at 1 AU
and that MCs are large-scale structures, this finding is also consistent with the idea that erosion is a common process. Finally, we studied potential correlations between the amount of eroded azimuthal magnetic flux and various parameters such as local magnetic shear, Alfvén speed, and leading and trailing ambient solar wind speeds. However, no significant correlations were found, suggesting that the locally observed parameters at 1 AU are not likely to be representative of the conditions that prevailed during the erosion which occurred during propagation from the Sun to 1 AU. Future heliospheric missions, and in particular Solar Orbiter or Solar Probe Plus, will be fully geared to answer such questions.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Meteorología Espacial
dc.subject
Física Espacial
dc.subject
Viento Solar
dc.subject.classification
Investigación Climatológica
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Statistical study of magnetic cloud erosion by magnetic reconnection
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-05-18T15:36:13Z
dc.journal.volume
120
dc.journal.number
1
dc.journal.pagination
1-18
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Hoboken
dc.description.fil
Fil: Ruffenach, A.. Universite de Toulouse; Francia
dc.description.fil
Fil: Lavraud, B.. Universite de Toulouse; Francia
dc.description.fil
Fil: Farrugia, C. J.. University of New Hampshire; Estados Unidos
dc.description.fil
Fil: Démoulin, Pascal. Centre National de la Recherche Scientifique. Observatoire de Paris; Francia
dc.description.fil
Fil: Dasso, Sergio Ricardo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. 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
dc.description.fil
Fil: Owens, M. J.. University Of Reading; Reino Unido
dc.description.fil
Fil: Sauvaud, J. A.. Universite de Toulouse; Francia
dc.description.fil
Fil: Rouillard, A. P.. Universite de Toulouse; Francia
dc.description.fil
Fil: Lynnyk, A.. Universite de Toulouse; Francia
dc.description.fil
Fil: Foullon, C.. University Of Exeter; Reino Unido
dc.description.fil
Fil: Savani, N. P.. National Aeronautics And Space Administration. Goddart Institute For Space Studies; Estados Unidos
dc.description.fil
Fil: Luhmann, J. G.. University Of California Berkeley; Estados Unidos
dc.description.fil
Fil: Galvin, A. B.. University of New Hampshire; Estados Unidos
dc.journal.title
Journal Of Geophysical Research
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/2014JA020628/abstract
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/2014JA020628
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