A map of D/H on Mars using high-resolution spectroscopy with EXES aboard SOFIA

Thérèse Encrenaz 1 M. Richter 2 C. Dewitt 2 T. Greathouse 3 T. Fouchet 1 Franck Montmessin 4 Franck Lefèvre 4 B. Bézard 1 S. Atreya 5 M. Case 2 N. Ryde 6
1 LESIA - Laboratoire d'études spatiales et d'instrumentation en astrophysique
2 University of California Davis
3 SwRI - Southwest Research Institute [San Antonio]
4 IMPEC - LATMOS
LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
5 AOSS - Department of Atmospheric, Oceanic, and Space Sciences [Ann Arbor]
6 Lund Observatory
Abstract : We have obtained a map of D/H on Mars on April 8, 2014, when the planet was close to opposition (15.3” in diameter) and close to northern summer solstice (Ls = 113°). Data were recorded with the EXES (Echelon Cross Echelle Spectrograph) imaging spectrometer aboard the Stratospheric Observatory for Infrared Astronomy (SOFIA). A preliminary reduction indicates an increase of the D/H ratio from south to north, with a disk-integrated value of about 6.5 times the terrestrial value.
Type de document :
Communication dans un congrès
European Planetary Science Congress 2015, Sep 2015, Nantes, France. 10, pp.EPSC2015-110, 2015
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https://hal-insu.archives-ouvertes.fr/insu-01214342
Contributeur : Catherine Cardon <>
Soumis le : lundi 12 octobre 2015 - 10:19:12
Dernière modification le : mardi 29 mai 2018 - 12:51:05

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  • HAL Id : insu-01214342, version 1

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INSU | OBSPM | LESIA | UPMC | UVSQ | LATMOS | PSL | USPC | UNIV-PARIS-SACLAY

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Thérèse Encrenaz, M. Richter, C. Dewitt, T. Greathouse, T. Fouchet, et al.. A map of D/H on Mars using high-resolution spectroscopy with EXES aboard SOFIA. European Planetary Science Congress 2015, Sep 2015, Nantes, France. 10, pp.EPSC2015-110, 2015. 〈insu-01214342〉

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