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dc.contributor.author
Janvier, Miho
dc.contributor.author
Winslow, Reka M.
dc.contributor.author
Good, Simon
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Bonhomme, Elise
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Démoulin, Pascal
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dc.contributor.author
Dasso, Sergio Ricardo
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Möstl, Christian
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Lugaz, Noé
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Amerstorfer, Tanja
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Soubrié, Elie
dc.contributor.author
Boakes, Peter D.
dc.date.available
2020-03-11T14:02:57Z
dc.date.issued
2019-02
dc.identifier.citation
Janvier, Miho; Winslow, Reka M.; Good, Simon; Bonhomme, Elise; Démoulin, Pascal; et al.; Generic Magnetic Field Intensity Profiles of Interplanetary Coronal Mass Ejections at Mercury, Venus, and Earth From Superposed Epoch Analyses; American Geophysical Union; Journal of Geophysical Research: Space Physics; 124; 2; 2-2019; 812-836
dc.identifier.issn
2169-9402
dc.identifier.uri
http://hdl.handle.net/11336/99098
dc.description.abstract
We study interplanetary coronal mass ejections (ICMEs) measured by probes at different heliocentric distances (0.3–1 AU) to investigate the propagation of ICMEs in the inner heliosphere and determine how the generic features of ICMEs change with heliospheric distance. Using data from the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER), Venus Express and ACE spacecraft, we analyze with the superposed epoch technique the profiles of ICME substructures, namely, the sheath and the magnetic ejecta. We determine that the median magnetic field magnitude in the sheath correlates well with ICME speeds at 1 AU, and we use this proxy to order the ICMEs at all spacecraft. We then investigate the typical ICME profiles for three categories equivalent to slow, intermediate, and fast ICMEs. Contrary to fast ICMEs, slow ICMEs have a weaker solar wind field at the front and a more symmetric magnetic field profile. We find the asymmetry to be less pronounced at Earth than at Mercury, indicating a relaxation taking place as ICMEs propagate. We also find that the magnetic field intensities in the wake region of the ICMEs do not go back to the pre-ICME solar wind intensities, suggesting that the effects of ICMEs on the ambient solar wind last longer than the duration of the transient event. Such results provide an indication of physical processes that need to be reproduced by numerical simulations of ICME propagation. The samples studied here will be greatly improved by future missions dedicated to the exploration of the inner heliosphere, such as Parker Solar Probe and Solar Orbiter.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Geophysical Union
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CORONAL MASS EJECTIONS
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DATA ANALYSIS
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HELIOSPHERIC PHYSICS
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Astronomía
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Generic Magnetic Field Intensity Profiles of Interplanetary Coronal Mass Ejections at Mercury, Venus, and Earth From Superposed Epoch Analyses
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-12-18T13:55:41Z
dc.journal.volume
124
dc.journal.number
2
dc.journal.pagination
812-836
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Janvier, Miho. Université Paris Sud; Francia
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Fil: Winslow, Reka M.. University of New Hampshire; Estados Unidos
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Fil: Good, Simon. University of Helsinki; Finlandia
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Fil: Bonhomme, Elise. Université Paris Sud; Francia
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Fil: Démoulin, Pascal. Université Paris Diderot - Paris 7; Francia
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Fil: Dasso, Sergio Ricardo. 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
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Fil: Möstl, Christian. Austrian Academy of Sciences. Space Research Institute; Austria
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Fil: Lugaz, Noé. University of New Hampshire; Estados Unidos
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Fil: Amerstorfer, Tanja. Austrian Academy of Sciences. Space Research Institute; Austria
dc.description.fil
Fil: Soubrié, Elie. Université Paris Sud; Francia
dc.description.fil
Fil: Boakes, Peter D.. Austrian Academy of Sciences. Space Research Institute; Austria
dc.journal.title
Journal of Geophysical Research: Space Physics
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1029/2018JA025949
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018JA025949
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