Energetic Neutral Atom Emissions From Venus: VEX Observations and Theoretical Modeling

Details Energetic Neutral Atom Emissions From Venus: VEX Observations and Theoretical Modeling Energetic Neutral Atom Emissions From Venus: VEX Observations and Theoretical Modeling

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsh13b..05f&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SH13B-05

Physics

5464 Remote Sensing, 6295 Venus, 6297 Instruments And Techniques

Scientific paper

Venus has almost no intrinsic magnetic field to shield itself from its surrounding environment. The solar wind thus directly interacts with the planetary ionosphere and atmosphere. One of the by-products of this close encounter is the production of energetic neutral atom (ENA) emissions. Theoretical studies have shown that significant amount of ENAs are emanated from the planet. The launch of the Venus Express (VEX) in 2005 provided the first light ever of the Venus ENA emissions. The observed ENA flux level and structure are in pretty good agreement with the theoretical studies. In this paper, we present VEX ENA data and the comparison with numerical simulations. We seek to understand the solar wind interaction with the planet and the impacts on its atmospheres.

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