Skip to Main content Skip to Navigation
Journal articles

Martian Thermospheric Response to an X8.2 Solar Flare on 10 September 2017 as Seen by MAVEN/IUVS

Sonal Jain 1 Justin Deighan 1 N. Schneider 1 A. Stewart 1 J. Evans 1 E. Thiemann 1 M. Chaffin 1 M. Crismani 1 M. Stevens 2 M. Elrod 3 Arnaud Stiepen 4 W. Mcclintock 1 D. Lo 5 J. Clarke 6 F. Eparvier 1 Franck Lefèvre 7 Franck Montmessin 7 G. Holsclaw 1 P. Chamberlin 1 B. Jakosky 1
1 LASP - Laboratory for Atmospheric and Space Physics [Boulder]
2 NRL - Naval Research Laboratory
3 GSFC - NASA Goddard Space Flight Center
4 LPAP - Laboratoire de Physique Atmosphérique et Planétaire
5 LPL - Lunar and Planetary Laboratory [Tucson]
6 CSP - Center for Space Physics [Boston]
7 IMPEC - LATMOS
LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
Abstract : We report the response of the Martian upper atmosphere to a strong X‐class flare on September 10, 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 hrs 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 mid‐latitudes. During this event IUVS observed an ∼70% increase in the observed brightness of CO2+ Ultraviolet Doublet and CO Cameron band emission at 90 km, where high‐energy photons (< 10 nm) deposit most of their energy.
Document type :
Journal articles
Complete list of metadatas

Cited literature [32 references]  Display  Hide  Download
https://hal-insu.archives-ouvertes.fr/insu-01798721
Contributor : Catherine Cardon <>
Submitted on : Thursday, August 6, 2020 - 8:35:32 PM
Last modification on : Saturday, December 12, 2020 - 12:10:12 PM
Long-term archiving on: : Monday, November 30, 2020 - 4:03:44 PM

File

Vignette du document
2018GL077731.pdf
Files produced by the author(s)

Identifiers

Collections

UPMC | SU-SCIENCES | SORBONNE-UNIVERSITE | LATMOS | UVSQ | CNRS | INSU | SU-TI

Citation

Sonal Jain, Justin Deighan, N. Schneider, A. Stewart, J. Evans, et al.. Martian Thermospheric Response to an X8.2 Solar Flare on 10 September 2017 as Seen by MAVEN/IUVS. Geophysical Research Letters, American Geophysical Union, 2018, 45 (15), pp.7312-7319. ⟨10.1029/2018GL077731⟩. ⟨insu-01798721⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

284

Files downloads

64