HR: 14:25h
AN: SH13B-04 INVITED    [Abstracts]
TI: A Review on the First ENA Observations at Mars and Venus
AU: * Galli, A
EM: galli@space.unibe.ch
AF: University of Bern, Sidlerstrasse 5, Bern, 3012, Switzerland
AU: Fok, M
EM: mei-ching.h.fok@nasa.gov
AF: NASA Goddard Space Flight Center, 8800 Greenbelt Road, Code 673, Greenbelt, MD 20771, United States
AU: Wurz, P
EM: peter.wurz@space.unibe.ch
AF: University of Bern, Sidlerstrasse 5, Bern, 3012, Switzerland
AU: Barabash, S
EM: stas@irf.se
AF: Swedish Institute of Space Physics, P.O. Box 812, Kiruna, 981 28, Sweden
AU: Grigoriev, A
EM: aug@irf.se
AF: Swedish Institute of Space Physics, P.O. Box 812, Kiruna, 981 28, Sweden
AU: Futaana, Y
EM: futaana@irf.se
AF: Swedish Institute of Space Physics, P.O. Box 812, Kiruna, 981 28, Sweden
AU: Holmstrom, M
EM: matsh@irf.se
AF: Swedish Institute of Space Physics, P.O. Box 812, Kiruna, 981 28, Sweden
AU: Gunell, H
EM: hegunell@mail.wvu.edu
AF: Department of Physics, West Virginia University, P.O. Box 6315, 209 Hodges Hall, Morgantown, WV 26506, United States
AB: The ASPERA-3/4 instruments on the two ESA spacecraft Mars Express and Venus Express have provided the first measurements ever of energetic neutral atoms (ENAs) from Mars and Venus. Here we review the first years of ENA observations.
We will present an overview of the observed ENA sources in the Mars and Venus environment and compare them to model results. These comparisons are a vital test for the models and for our general understanding of the interaction of the solar wind with non-magnetized planets. Finally, we will summarize the lessons learned for future ENA imaging missions.
DE: 0328 Exosphere
DE: 5421 Interactions with particles and fields
DE: 6225 Mars
DE: 6295 Venus
DE: 7837 Neutral particles (2151)
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Fall Meeting