Electron heating at interplanetary shocks

Details Electron heating at interplanetary shocks Electron heating at interplanetary shocks

Nov 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983nascp.2280.403f&link_type=abstract

In JPL Solar Wind Five p 403-411 (SEE N84-13067 03-92)

Other

Electron Plasma, Interplanetary Medium, Plasma Heating, Shock Waves, Electron Energy, Interplanetary Magnetic Fields, Plasma Conductivity

Scientific paper

Data for 41 forward interplanetary shocks show that the ratio of downstream to upstream electron temperatures. Te (d/u) is variable in the range between 1.0 (isothermal) and 3.0. On average, (Te (d/u) = 1.5 with a standard deviation, sigma e = 0.5. This ratio is less than the average ratio of proton temperatures across the same shocks, (Tp (d/u)) = 3.3 with sigma p = 2.5 as well as the average ratio of electron temperatures across the Earth's bow shock. Individual samples of Te (d/u) and Tp (d/u) appear to be weakly correlated with the number density ratio. However the amounts of electron and proton heating are well correlated with each other as well as with the bulk velocity difference across each shock. The stronger shocks appear to heat the protons more efficiently than they heat the electrons.

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