Journal articles
Significant Space Weather Impact on the Escape of Hydrogen from Mars
Majd Mayyasi
1
Dolon Bhattacharyya
1
John Clarke
1
Amy Catalano
1
Mehdi Benna
2
Paul Mahaffy
2
Edward Thiemann
3
Christina Lee
4
Justin Deighan
3
Sonal Jain
3
Michael Chaffin
3
Matteo Crismani
3
William Mcclintock
3
Ian Stewart
3
Greg Holsclaw
3
Arnaud Stiepen
5
Franck Montmessin
6
Nick Schneider
3
Bruce Jakosky
3
Franck Montmessin 6
Author IdHAL : franck-montmessin ORCID : https://orcid.org/0000-0002-4187-1457
Nick Schneider 3
Author
Bruce Jakosky 3
Author
1
CSP - Center for Space Physics [Boston] (Boston, MA 02108 - United States)
- BU - Boston University [Boston] (One Silber Way, Boston, MA 02215 - United States)
2
GSFC - NASA Goddard Space Flight Center (Greenbelt, MD 20771 - United States)
3
LASP - Laboratory for Atmospheric and Space Physics [Boulder] (1234 Innovation Drive, Boulder, CO 80303-7814 - United States)
- University of Colorado [Boulder] (Boulder, Colorado 80309 - United States)
4
SSL - Space Sciences Laboratory [Berkeley] (7 Gauss Way, Berkeley, CA 94720 - United States)
- University of California [Berkeley] (Berkeley, CA - United States)
- University of California (United States)
5
LPAP - Laboratoire de Physique Atmosphérique et Planétaire (Liège - Belgium)
- Université de Liège (Place du 20-Août, 7 4000 Liège - Belgium)
6
IMPEC - LATMOS (France)
- LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales (11 boulevard d'Alembert
Quartier des Garennes
78280 - Guyancourt - France)
- INSU - CNRS - Institut national des sciences de l'Univers : UMR8190 (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR8190 (France)
- UVSQ - Université de Versailles Saint-Quentin-en-Yvelines : UMR8190 (55 avenue de Paris - 78035 Versailles cedex - France)
- SU - Sorbonne Université : UMR8190 (21 rue de l’École de médecine - 75006 Paris - France)
Abstract : In September 2017, an active region of the Sun produced a series of strong flares and a coronal mass ejection that swept past Mars producing enhanced ionization and heating in the upper atmosphere. Emissions from atmospheric hydrogen Lyman‐α were also enhanced at Mars. Temperatures derived from neutral species scale heights were used in conjunction with the H Lyman‐α observations to simulate the effects of this space weather event on martian hydrogen properties in the exosphere. It was found that hydrogen abundance in the upper atmosphere decreased by ~25%, and that the H escape rate increased by a factor of 5, mainly through an increase in upper atmospheric temperature. This significant escape rate variation is comparable to seasonally observed trends but occurred at much shorter timescales. Such solar events would statistically impact extrapolation of martian water loss over time.
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Journal articles
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https://hal-insu.archives-ouvertes.fr/insu-01798739
Contributor : Catherine Cardon <>
Submitted on : Thursday, September 3, 2020 - 9:00:14 AM
Last modification on : Thursday, September 3, 2020 - 9:08:08 AM
Contributor : Catherine Cardon <>
Submitted on : Thursday, September 3, 2020 - 9:00:14 AM
Last modification on : Thursday, September 3, 2020 - 9:08:08 AM
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2018GL077727.pdf
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Identifiers
- HAL Id : insu-01798739, version 1
- DOI : 10.1029/2018GL077727
Collections
INSU | CNRS | LATMOS | UVSQ | UNIV-PARIS-SACLAY | SORBONNE-UNIVERSITE | SU-SCIENCES
Citation
Majd Mayyasi, Dolon Bhattacharyya, John Clarke, Amy Catalano, Mehdi Benna, et al.. Significant Space Weather Impact on the Escape of Hydrogen from Mars. Geophysical Research Letters, American Geophysical Union, 2018, 45 (17), pp.8844-8852. ⟨10.1029/2018GL077727⟩. ⟨insu-01798739⟩
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