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Correlations between enhanced electron temperatures and electric field wave power in the Martian ionosphere

dc.contributor.authorFowler, C. M.
dc.contributor.authorAndersson, L.
dc.contributor.authorPeterson, W. K.
dc.contributor.authorHalekas, J.
dc.contributor.authorNagy, A. F.
dc.contributor.authorErgun, R. E.
dc.contributor.authorEspley, J.
dc.contributor.authorMitchell, D. L.
dc.contributor.authorConnerney, J. E. P.
dc.contributor.authorMazelle, C.
dc.contributor.authorMahaffy, P. R.
dc.contributor.authorJakosky, B. M.
dc.date.accessioned2018-03-07T18:23:23Z
dc.date.available2019-03-01T21:00:17Zen
dc.date.issued2018-01-28
dc.identifier.citationFowler, C. M.; Andersson, L.; Peterson, W. K.; Halekas, J.; Nagy, A. F.; Ergun, R. E.; Espley, J.; Mitchell, D. L.; Connerney, J. E. P.; Mazelle, C.; Mahaffy, P. R.; Jakosky, B. M. (2018). "Correlations between enhanced electron temperatures and electric field wave power in the Martian ionosphere." Geophysical Research Letters 45(2): 493-501.
dc.identifier.issn0094-8276
dc.identifier.issn1944-8007
dc.identifier.urihttps://hdl.handle.net/2027.42/142425
dc.description.abstractStatistical correlations are reported between measured electron temperatures and total electric field wave power (in the 2–100 Hz frequency range), at Mars’ subsolar point ionosphere. The observations, made by the Mars Atmosphere and Volatile EvolutioN spacecraft, suggest that electric field wave power from the Mars‐solar wind interaction propagates through the Martian ionosphere and is able to heat ionospheric electrons by over 1000 K. Such heating can account for a substantial (but likely not complete) fraction of previously reported discrepancies between modeled and observed electron temperatures in Mars’ upper ionosphere. Wave power is typically less than observable thresholds below altitudes of about 200 km, suggesting that energy is deposited into the ionosphere above this. Observed total wave powers range between 10−12 and 10−9 (V/m)2 and decrease with increasing integrated electron density (or decreasing altitude).Key PointsCorrelations exist between observed electron temperature and total electric field wave power in Mars’ ionosphereElectron temperature can be enhanced by over 1000 K for the largest observed wave powersThe observed heating can account for a large fraction of reported discrepancies between modeled and observed electron temperatures
dc.publisherWiley Periodicals, Inc.
dc.publisherCambridge Univ. Press
dc.subject.otherionosphere
dc.subject.otherMars
dc.subject.otherheating
dc.subject.otherelectron
dc.titleCorrelations between enhanced electron temperatures and electric field wave power in the Martian ionosphere
dc.typeArticleen_US
dc.rights.robotsIndexNoFollow
dc.subject.hlbsecondlevelGeological Sciences
dc.subject.hlbtoplevelScience
dc.description.peerreviewedPeer Reviewed
dc.description.bitstreamurlhttps://deepblue.lib.umich.edu/bitstream/2027.42/142425/1/grl55786.pdf
dc.description.bitstreamurlhttps://deepblue.lib.umich.edu/bitstream/2027.42/142425/2/grl55786_am.pdf
dc.identifier.doi10.1002/2017GL073387
dc.identifier.sourceGeophysical Research Letters
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dc.owningcollnameInterdisciplinary and Peer-Reviewed


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