Article (Scientific journals)
Martian Thermospheric Response to an X8.2 Solar Flare on 10 September 2017 as Seen by MAVEN/IUVS
Jain, S. K.; Deighan, J.; Schneider, N. M. et al.
2018In Geophysical Research Letters, 45 (15), p. 7312-7319
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Keywords :
Mars; X-class flare; Earth sciences; Geophysics; Cameron band emissions; High energy photons; Latitudinal gradients; Solar events; Volatile evolution; X-class flares; Ionosphere; Martian atmosphere
Abstract :
[en] We report the response of the Martian upper atmosphere to a strong X-class flare on 10 September 2017 as observed by the Imaging Ultraviolet Spectrograph (IUVS) instrument aboard the Mars Atmosphere Volatile EvolutioN (MAVEN) mission. The solar flare peaked at 16:24 hr UT, and IUVS dayglow observations were taken about an hour after the flare peak. Retrieved temperatures from IUVS dayglow observations show a significant increase during the flare orbit, with a mean value of ∼270 K and a maximum value of ∼310 K. The retrieved temperatures during the flare orbit also show a strong latitudinal gradient, indicating that the flare-induced heating is limited between low and middle latitudes. During this event IUVS observed an ∼70% increase in the observed brightness of CO+ 2 ultraviolet doublet and CO Cameron band emission at 90 km, where high-energy photons (< 10 nm) deposit most of their energy. ©2018. American Geophysical Union. All Rights Reserved.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Jain, S. K.;  Laboratory for Atmosphere and Space Physics, University of Colorado Boulder, Boulder, CO, United States
Deighan, J.;  Laboratory for Atmosphere and Space Physics, University of Colorado Boulder, Boulder, CO, United States
Schneider, N. M.;  Laboratory for Atmosphere and Space Physics, University of Colorado Boulder, Boulder, CO, United States
Stewart, A. I. F.;  Laboratory for Atmosphere and Space Physics, University of Colorado Boulder, Boulder, CO, United States
Evans, J. S.;  Computational Physics, Inc., Springfield, VA, United States
Thiemann, E. M. B.;  Laboratory for Atmosphere and Space Physics, University of Colorado Boulder, Boulder, CO, United States
Chaffin, M. S.;  Laboratory for Atmosphere and Space Physics, University of Colorado Boulder, Boulder, CO, United States
Crismani, M.;  Laboratory for Atmosphere and Space Physics, University of Colorado Boulder, Boulder, CO, United States
Stevens, M. H.;  Naval Research Laboratory, Washington, DC, United States
Elrod, M. K.;  NASA Goddard Spaceflight Center, Greenbelt, MD, United States
Stiepen, Arnaud ;  Université de Liège - ULiège
McClintock, W. E.;  Laboratory for Atmosphere and Space Physics, University of Colorado Boulder, Boulder, CO, United States
Lo, D. Y.;  Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, United States
Clarke, J. T.;  Center for Space Physics, Boston University, Boston, MA, United States
Eparvier, F. G.;  Laboratory for Atmosphere and Space Physics, University of Colorado Boulder, Boulder, CO, United States
Lefévre, F.;  LATMOS, CNRS, Guyancourt, France
Montmessin, F.;  LATMOS, CNRS, Guyancourt, France
Holsclaw, G. M.;  Laboratory for Atmosphere and Space Physics, University of Colorado Boulder, Boulder, CO, United States
Chamberlin, P. C.;  Laboratory for Atmosphere and Space Physics, University of Colorado Boulder, Boulder, CO, United States
Jakosky, B. M.;  Laboratory for Atmosphere and Space Physics, University of Colorado Boulder, Boulder, CO, United States
More authors (10 more) Less
Language :
English
Title :
Martian Thermospheric Response to an X8.2 Solar Flare on 10 September 2017 as Seen by MAVEN/IUVS
Publication date :
2018
Journal title :
Geophysical Research Letters
ISSN :
0094-8276
eISSN :
1944-8007
Publisher :
Blackwell Publishing Ltd
Volume :
45
Issue :
15
Pages :
7312-7319
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
CU - University of Colorado System [US-CO] [US-CO]
NASA - National Aeronautics and Space Administration [US-DC] [US-DC]
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