Article (Scientific journals)
Three-dimensional structure in the Mars H corona revealed by IUVS on MAVEN
Chaffin, M. S.; Chaufray, J. Y.; Deighan, J. et al.
2015In Geophysical Research Letters
Peer Reviewed verified by ORBi
 

Files


Full Text
Chaffin_et_al-2015-Geophysical_Research_Letters.pdf
Publisher postprint (788.09 kB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Atmospheric escape; H corona; Jeans escape; Mars; MAVEN; Water loss; Earth sciences; Geophysics; Radiative transfer
Abstract :
[en] Loss of water to space via neutral hydrogen escape has been an important process throughout Martian history. Contemporary loss rates can be constrained through observations of the extended neutral hydrogen atmosphere of Mars in scattered sunlight at 121.6 nm. Historically, such observations have been interpreted with coupled density and radiative transfer models, inferring escape fluxes from brightness profiles gathered by flybys, orbiters, and telescope observations. Here we demonstrate that the spherical symmetry assumed by prior analyses cannot reproduce observations by the Imaging Ultraviolet Spectrograph (IUVS) on the Mars Atmosphere and Volatile EvolutioN (MAVEN) mission. We present unique observations of the Mars H corona to large radial distances and mapping results from initial MAVEN science at Mars. These observations represent the first detection of three-dimensional structure in the H corona of Mars, with implications for understanding the atmosphere today and the loss of H to space throughout Martian history. © 2015. American Geophysical Union. All Rights Reserved.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Chaffin, M. S.;  Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA
Chaufray, J. Y.;  LATMOS/IPSL, Guyancourt Yvelines/Île-de-France Guyancourt France
Deighan, J.;  Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA
Schneider, N. M.;  Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA
Mcclintock, W. E.;  Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA
Stewart, A. I. F.;  Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA
Thiemann, E.;  Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA
Clarke, J. T.;  Center for Space Physics Boston University Boston, Massachusetts USA
Holsclaw, G. M.;  Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA
Jain, S. K.;  Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA
Crismani, M. M. J.;  Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA
Stiepen, Arnaud ;  Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)
Montmessin, F.;  LATMOS/IPSL, Guyancourt Yvelines/Île-de-France Guyancourt France
Eparvier, F. G.;  Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA
Chamberlain, P. C.;  NASA Goddard Space Flight Center Greenbelt, Maryland USA
Jakosky, Bruce M.;  Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder, Colorado USA
More authors (6 more) Less
Language :
English
Title :
Three-dimensional structure in the Mars H corona revealed by IUVS on MAVEN
Publication date :
2015
Journal title :
Geophysical Research Letters
ISSN :
0094-8276
eISSN :
1944-8007
Publisher :
Blackwell Publishing
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 11 January 2016

Statistics


Number of views
51 (1 by ULiège)
Number of downloads
150 (1 by ULiège)

Scopus citations®
 
79
Scopus citations®
without self-citations
35
OpenCitations
 
57
OpenAlex citations
 
76

Bibliography


Similar publications



Contact ORBi