Physics – Plasma Physics
Scientific paper
Oct 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aps..dppqp1101s&link_type=abstract
American Physical Society, 48th Annual Meeting of the Division of Plasma Physics, October 30-November 3, 2006, abstract #QP1.101
Physics
Plasma Physics
Scientific paper
It is a goal of the presentation to show that recently observed X-ray emission from non-magnetic planets Venus and Mars (Ref. 1) can be explained by the same mechanism that was originally proposed for explanation of X-ray emission from comets (Ref. 2), namely as combination of Bremmstrahlung and line K shell radiation produced in interaction of energetic electrons with neutral atmosphere. It is argued that fluorescence of solar X-rays in no way cannot be the source of the observed emission. Numerical simulation are presented that show how energetic electrons can be produced by modified two stream instability developing in planetary mantle as the result of interaction of counterstreaming plasma populations - solar wind and ionospheric cold plasma. Comparison with experimental data is also carried out. 1) Dennerel et al Astronomy and Astrophysics, 386, 319, 2002 2) Bingham et al Science, 275, 49, 1997 Shapiro et al J Geophys, Res, 104, 2587, 1999
Bingham Robert
Quest Kevin
Shapiro Vitali
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