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New experimental studies of ice grain ejection by massive gas flow, implications to comets, Enceladus, Triton and Mars

Published online by Cambridge University Press:  13 February 2013

A. Bar-Nun ,
D. Laufer ,
R. Jacovi  and
I. Pat-El
A. Bar-Nun
Affiliation:
Department of Geophysical Atmospheric and Planetary Sciences, Tel-Aviv University, Tel-Aviv 69978, Israel
D. Laufer
Affiliation:
Department of Geophysical Atmospheric and Planetary Sciences, Tel-Aviv University, Tel-Aviv 69978, Israel
R. Jacovi
Affiliation:
Department of Geophysical Atmospheric and Planetary Sciences, Tel-Aviv University, Tel-Aviv 69978, Israel
I. Pat-El
Affiliation:
Department of Geophysical Atmospheric and Planetary Sciences, Tel-Aviv University, Tel-Aviv 69978, Israel

Abstract

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Ice grains are ejected whenever gases are flowing from gas-laden amorphous ice upon its warming-up. We elucidated the mechanism of gas trapping when flowing onto a gas-free ice layer. The observations on ice grain ejection from comets, Enceladus, Triton and the Martian South Polar region are explained as well.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 58: ECLA - European Conference on Laboratory Astrophysics , 2012 , pp. 205 - 208
Copyright
© The Author(s) 2013

References

Références

Bar-Nun, A., Dror, J., Kochavi, E., & Laufer, D., 1987, Phys. Rev. B, 35 , 2427 CrossRef
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Laufer, D., Pat-El, I., & Bar-Nun, A., 2005, Icarus, 178 , 248 CrossRef
Laufer, D., Bar-Nun, A., Pat-El, I., & Jacovi, R., 2013, Icarus, in press
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