The effect of the ambient solar wind medium on a CME-driven shock and the associated gradual solar energetic particle event

We present simulation results of a gradual solar energetic particle (SEP) event detected on 2021 October 9 by multiple spacecraft, including BepiColombo (Bepi) and near-Earth spacecraft such as the Advanced Composition Explorer (ACE). A peculiarity of this event is that the presence of a high-speed...

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Autores: Wijsen, Nicolas, Lario, David, Sánchez-Cano, Beatriz, Jebaraj, Immanuel C., Dresing, Nina, Richardson, Ian G., Aran i Sensat, Maria dels Àngels, Kouloumvakos, Athanasios, Ding, Zheyi, Niemela, Antonio, Palmeiro, Erika., Carcaboso, Fernando, Vainio, Rami, Afanasiev, Alexandr, Pinto, Marco, Pacheco, Daniel, Poedts, Stefaan, Heyner, Daniel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/200397
Acceso en línea:https://hdl.handle.net/2445/200397
Access Level:acceso abierto
Palabra clave:Camps magnètics interplanetaris
Vent solar
Activitat solar
Interplanetary magnetic fields
Solar wind
Solar activity
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spelling The effect of the ambient solar wind medium on a CME-driven shock and the associated gradual solar energetic particle eventWijsen, NicolasLario, DavidSánchez-Cano, BeatrizJebaraj, Immanuel C.Dresing, NinaRichardson, Ian G.Aran i Sensat, Maria dels ÀngelsKouloumvakos, AthanasiosDing, ZheyiNiemela, AntonioPalmeiro, Erika.Carcaboso, FernandoVainio, RamiAfanasiev, AlexandrPinto, MarcoPacheco, DanielPoedts, StefaanHeyner, DanielCamps magnètics interplanetarisVent solarActivitat solarInterplanetary magnetic fieldsSolar windSolar activityWe present simulation results of a gradual solar energetic particle (SEP) event detected on 2021 October 9 by multiple spacecraft, including BepiColombo (Bepi) and near-Earth spacecraft such as the Advanced Composition Explorer (ACE). A peculiarity of this event is that the presence of a high-speed stream (HSS) affected the low-energy ion component (≲5 MeV) of the gradual SEP event at both Bepi and ACE, despite the HSS having only a modest solar wind speed increase. Using the EUHFORIA (European Heliospheric FORecasting Information Asset) magnetohydrodynamic model, we replicate the solar wind during the event and the coronal mass ejection (CME) that generated it. We then combine these results with the energetic particle transport model PARADISE (PArticle Radiation Asset Directed at Interplanetary Space Exploration). We find that the structure of the CME-driven shock was affected by the nonuniform solar wind, especially near the HSS, resulting in a shock wave front with strong variations in its properties such as its compression ratio and obliquity. By scaling the emission of energetic particles from the shock to the solar wind compression at the shock, an excellent match between the PARADISE simulation and in situ measurements of ≲5 MeV ions is obtained. Our modeling shows that the intricate intensity variations observed at both ACE and Bepi were influenced by the nonuniform emission of energetic particles from the deformed shock wave and demonstrates the influence of even modest background solar wind structures on the development of SEP events.Institute of Physics (IOP)2023202320232023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion10 p.application/pdfhttps://hdl.handle.net/2445/200397Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.3847/1538-4357/acd1edAstrophysical Journal, 2023, vol. 950, num. 172, p. 1-10https://doi.org/10.3847/1538-4357/acd1edcc-by (c) Wijsen, Nicolas, et al., 2023http://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:recercat.cat:2445/2003972026-05-29T05:05:01Z
dc.title.none.fl_str_mv The effect of the ambient solar wind medium on a CME-driven shock and the associated gradual solar energetic particle event
title The effect of the ambient solar wind medium on a CME-driven shock and the associated gradual solar energetic particle event
spellingShingle The effect of the ambient solar wind medium on a CME-driven shock and the associated gradual solar energetic particle event
Wijsen, Nicolas
Camps magnètics interplanetaris
Vent solar
Activitat solar
Interplanetary magnetic fields
Solar wind
Solar activity
title_short The effect of the ambient solar wind medium on a CME-driven shock and the associated gradual solar energetic particle event
title_full The effect of the ambient solar wind medium on a CME-driven shock and the associated gradual solar energetic particle event
title_fullStr The effect of the ambient solar wind medium on a CME-driven shock and the associated gradual solar energetic particle event
title_full_unstemmed The effect of the ambient solar wind medium on a CME-driven shock and the associated gradual solar energetic particle event
title_sort The effect of the ambient solar wind medium on a CME-driven shock and the associated gradual solar energetic particle event
dc.creator.none.fl_str_mv Wijsen, Nicolas
Lario, David
Sánchez-Cano, Beatriz
Jebaraj, Immanuel C.
Dresing, Nina
Richardson, Ian G.
Aran i Sensat, Maria dels Àngels
Kouloumvakos, Athanasios
Ding, Zheyi
Niemela, Antonio
Palmeiro, Erika.
Carcaboso, Fernando
Vainio, Rami
Afanasiev, Alexandr
Pinto, Marco
Pacheco, Daniel
Poedts, Stefaan
Heyner, Daniel
author Wijsen, Nicolas
author_facet Wijsen, Nicolas
Lario, David
Sánchez-Cano, Beatriz
Jebaraj, Immanuel C.
Dresing, Nina
Richardson, Ian G.
Aran i Sensat, Maria dels Àngels
Kouloumvakos, Athanasios
Ding, Zheyi
Niemela, Antonio
Palmeiro, Erika.
Carcaboso, Fernando
Vainio, Rami
Afanasiev, Alexandr
Pinto, Marco
Pacheco, Daniel
Poedts, Stefaan
Heyner, Daniel
author_role author
author2 Lario, David
Sánchez-Cano, Beatriz
Jebaraj, Immanuel C.
Dresing, Nina
Richardson, Ian G.
Aran i Sensat, Maria dels Àngels
Kouloumvakos, Athanasios
Ding, Zheyi
Niemela, Antonio
Palmeiro, Erika.
Carcaboso, Fernando
Vainio, Rami
Afanasiev, Alexandr
Pinto, Marco
Pacheco, Daniel
Poedts, Stefaan
Heyner, Daniel
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Camps magnètics interplanetaris
Vent solar
Activitat solar
Interplanetary magnetic fields
Solar wind
Solar activity
topic Camps magnètics interplanetaris
Vent solar
Activitat solar
Interplanetary magnetic fields
Solar wind
Solar activity
description We present simulation results of a gradual solar energetic particle (SEP) event detected on 2021 October 9 by multiple spacecraft, including BepiColombo (Bepi) and near-Earth spacecraft such as the Advanced Composition Explorer (ACE). A peculiarity of this event is that the presence of a high-speed stream (HSS) affected the low-energy ion component (≲5 MeV) of the gradual SEP event at both Bepi and ACE, despite the HSS having only a modest solar wind speed increase. Using the EUHFORIA (European Heliospheric FORecasting Information Asset) magnetohydrodynamic model, we replicate the solar wind during the event and the coronal mass ejection (CME) that generated it. We then combine these results with the energetic particle transport model PARADISE (PArticle Radiation Asset Directed at Interplanetary Space Exploration). We find that the structure of the CME-driven shock was affected by the nonuniform solar wind, especially near the HSS, resulting in a shock wave front with strong variations in its properties such as its compression ratio and obliquity. By scaling the emission of energetic particles from the shock to the solar wind compression at the shock, an excellent match between the PARADISE simulation and in situ measurements of ≲5 MeV ions is obtained. Our modeling shows that the intricate intensity variations observed at both ACE and Bepi were influenced by the nonuniform emission of energetic particles from the deformed shock wave and demonstrates the influence of even modest background solar wind structures on the development of SEP events.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/200397
url https://hdl.handle.net/2445/200397
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.3847/1538-4357/acd1ed
Astrophysical Journal, 2023, vol. 950, num. 172, p. 1-10
https://doi.org/10.3847/1538-4357/acd1ed
dc.rights.none.fl_str_mv cc-by (c) Wijsen, Nicolas, et al., 2023
http://creativecommons.org/licenses/by/3.0/es/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Wijsen, Nicolas, et al., 2023
http://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 10 p.
application/pdf
dc.publisher.none.fl_str_mv Institute of Physics (IOP)
publisher.none.fl_str_mv Institute of Physics (IOP)
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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