Article (Scientific journals)
Discovery of diffuse aurora on Mars
Schneider, N. M.; Deighan, J. I.; Jain, S. K. et al.
2015In Science, 350 (6261)
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Abstract :
[en] Planetary auroras reveal the complex interplay between an atmosphere and the surrounding plasma environment.We report the discovery of low-Altitude, diffuse auroras spanning much of Mars' northern hemisphere, coincident with a solar energetic particle outburst. The Imaging Ultraviolet Spectrograph, a remote sensing instrument on the Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft, detected auroral emission in virtually all nightside observations for ~5 days, spanning nearly all geographic longitudes. Emission extended down to ~60 kilometer (km) altitude (1 microbar), deeper than confirmed at any other planet. Solar energetic particles were observed up to 200 kilo-electron volts; these particles are capable of penetrating down to the 60 km altitude. Given minimal magnetic fields over most of the planet, Mars is likely to exhibit auroras more globally than Earth.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Schneider, N. M.;  Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, United States
Deighan, J. I.;  Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, United States
Jain, S. K.;  Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, United States
Stiepen, Arnaud ;  Université de Liège - ULiège
Stewart, A. I. F.;  Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, United States
Larson, D.;  Space Sciences Lab, University of California, Berkeley, Berkeley, CA, United States
Mitchell, D. L.;  Space Sciences Lab, University of California, Berkeley, Berkeley, CA, United States
Mazelle, C.;  Institut de Recherche en Astrophysique et Planétologie (IRAP), CNRS, Toulouse, France, University Paul Sabatier, IRAP, CNRS, Toulouse, France
Lee, C. O.;  Space Sciences Lab, University of California, Berkeley, Berkeley, CA, United States
Lillis, R. J.;  Space Sciences Lab, University of California, Berkeley, Berkeley, CA, United States
Evans, J. S.;  Computational Physics, Inc, Springfield, VA, United States
Brain, D.;  Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, United States
Stevens, M. H.;  Space Science Division, Naval Research Laboratory, Washington, DC, United States
McClintock, W. E.;  Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, United States
Chaffin, M. S.;  Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, United States
Crismani, M.;  Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, United States
Holsclaw, G. M.;  Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, United States
Lefevre, F.;  Laboratoire Atmosphères, Observations Spatiales, Institut Pierre Simon Laplace, Guyancourt, France
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
Montmessin, F.;  Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, United States
Jakosky, Bruce M.;  Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, United States
More authors (12 more) Less
Language :
English
Title :
Discovery of diffuse aurora on Mars
Publication date :
2015
Journal title :
Science
ISSN :
0036-8075
eISSN :
1095-9203
Publisher :
American Association for the Advancement of Science
Volume :
350
Issue :
6261
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 23 November 2015

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