Show simple item record

dc.contributor.authorLario, D.
dc.contributor.authorRichardson, I.G.
dc.contributor.authorPalmerio, E.
dc.contributor.authorLugaz, N.
dc.contributor.authorBale, S.D.
dc.contributor.authorStevens, M.L.
dc.contributor.authorCohen, C.M.S.
dc.contributor.authorGiacalone, J.
dc.contributor.authorMitchell, D.G.
dc.contributor.authorSzabo, A.
dc.contributor.authorNieves-Chinchilla, T.
dc.contributor.authorWilson, L.B.
dc.contributor.authorChristian, E.R.
dc.contributor.authorHill, M.E.
dc.contributor.authorMcComas, D.J.
dc.contributor.authorMcNutt, R.L.
dc.contributor.authorSchwadron, N.A.
dc.contributor.authorWiedenbeck, M.E.
dc.date.accessioned2021-11-29T20:24:33Z
dc.date.available2021-11-29T20:24:33Z
dc.date.issued2021
dc.identifier.citationLario, D., Richardson, I. G., Palmerio, E., Lugaz, N., Bale, S. D., Stevens, M. L., Cohen, C. M. S., Giacalone, J., Mitchell, D. G., Szabo, A., Nieves-Chinchilla, T., Wilson, L. B., Christian, E. R., Hill, M. E., McComas, D. J., McNutt, R. L., Schwadron, N. A., & Wiedenbeck, M. E. (2021). Comparative Analysis of the 2020 November 29 Solar Energetic Particle Event Observed by Parker Solar Probe. Astrophysical Journal.
dc.identifier.issn0004-637X
dc.identifier.doi10.3847/1538-4357/ac157f
dc.identifier.urihttp://hdl.handle.net/10150/662369
dc.description.abstractWe analyze two specific features of the intense solar energetic particle (SEP) event observed by Parker Solar Probe (PSP) between 2020 November 29 and 2020 December 2. The interplanetary counterpart of the coronal mass ejection (CME) on 2020 November 29 that generated the SEP event (hereafter ICME-2) arrived at PSP (located at 0.8 au from the Sun) on 2020 December 1. ICME-2 was preceded by the passage of an interplanetary shock at 18:35 UT on 2020 November 30 (hereafter S2), that in turn was preceded by another ICME (i.e., ICME-1) observed in situ on 2020 November 30. The two interesting features of this SEP event at PSP are the following: First, the presence of the intervening ICME-1 affected the evolution of the ≲8 MeV proton intensity-time profiles resulting in the observation of inverted energy spectra throughout the passage of ICME-1. Second, the sheath region preceding ICME-2 was characterized by weak magnetic fields compared to those measured immediately after the passage of the shock S2 and during the passage of ICME-2. Comparison with prior SEP events measured at 1 au but with similar characteristics indicates that (1) low-energy particles accelerated by S2 were excluded from propagating throughout ICME-1, and (2) the low magnetic fields measured in the sheath of ICME-2 resulted from the properties of the upstream solar wind encountered by ICME-2 that was propagated into the sheath, whereas the energy density of the high-energy particles in the sheath did not play a dominant role in the formation of these low magnetic fields. © 2021. The American Astronomical Society. All rights reserved.
dc.language.isoen
dc.publisherIOP Publishing Ltd
dc.rightsCopyright © 2021. The American Astronomical Society. All rights reserved.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.titleComparative Analysis of the 2020 November 29 Solar Energetic Particle Event Observed by Parker Solar Probe
dc.typeArticle
dc.typetext
dc.contributor.departmentLunar and Planetary Laboratory, University of Arizona
dc.identifier.journalAstrophysical Journal
dc.description.noteImmediate access
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
dc.eprint.versionFinal published version
dc.source.journaltitleAstrophysical Journal
refterms.dateFOA2021-11-29T20:24:33Z


Files in this item

Thumbnail
Name:
Lario_2021_ApJ_920_123.pdf
Size:
2.141Mb
Format:
PDF
Description:
Final Published Version

This item appears in the following Collection(s)

Show simple item record