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dc.contributor.authorEsman, T.M.
dc.contributor.authorEspley, J.
dc.contributor.authorGruesbeck, J.
dc.contributor.authorFowler, C.M.
dc.contributor.authorXu, S.
dc.contributor.authorElrod, M.
dc.contributor.authorHarada, Y.
dc.contributor.authorGiacalone, J.
dc.date.accessioned2022-11-23T18:21:17Z
dc.date.available2022-11-23T18:21:17Z
dc.date.issued2022
dc.identifier.citationEsman, T. M., Espley, J., Gruesbeck, J., Fowler, C. M., Xu, S., Elrod, M., Harada, Y., & Giacalone, J. (2022). Martian Ionospheric Magnetic Fluctuations Below 200 km. Journal of Geophysical Research: Space Physics, 127(9).
dc.identifier.issn2169-9380
dc.identifier.doi10.1029/2022JA030470
dc.identifier.urihttp://hdl.handle.net/10150/666900
dc.description.abstractWe conduct a search for 5–16 Hz magnetic waves below 200 km and within the Martian ionosphere using data from multiple instruments onboard the Mars Atmosphere and Volatile EvolutioN mission spacecraft. We present a case study and an analysis of the 54 identified events to establish trends. Nearly half the wave events occur near the cusps of strong crustal magnetic fields (CMFs). The stronger regions have fewer events and may be a result of stronger CMFs preventing draped field lines from reaching lower altitudes. A majority of the observed magnetic waves occur on the nightside, are associated with greater fluxes of electrons traveling downward along the local magnetic field compared to those traveling upward, and correspond to increases in thermal plasma density. These aspects indicate electron precipitation was present during these wave events. We conclude that the waves are observed under magnetic field conditions favorable for the penetration of electrons and waves into the lower ionosphere, but that the electron precipitation cannot solely account for the waves or plasma changes. © 2022. American Geophysical Union. All Rights Reserved.
dc.language.isoen
dc.publisherJohn Wiley and Sons Inc
dc.rightsCopyright © 2022. American Geophysical Union. All Rights Reserved.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectelectron precipitation
dc.subjectionosphere
dc.subjectmagnetic fields
dc.subjectMars
dc.subjectwaves
dc.titleMartian Ionospheric Magnetic Fluctuations Below 200 km
dc.typeArticle
dc.typetext
dc.contributor.departmentLunar and Planetary Laboratory, University of Arizona
dc.identifier.journalJournal of Geophysical Research: Space Physics
dc.description.note6 month embargo; first published: 11 September 2022
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.journaltitleJournal of Geophysical Research: Space Physics


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