Strong electron heat flux modes in Jupiter's foreshock | Zendy

Moses S. L. | Zendy; Coroniti F. V. | Zendy; Kennel C. F. | Zendy; Scarf F. L. | Zendy

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Strong electron heat flux modes in Jupiter's foreshock

Author(s) -

Moses S. L.,

Coroniti F. V.,

Kennel C. F.,

Scarf F. L.

Publication year - 1984

Publication title -

geophysical research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.007

H-Index - 273

eISSN - 1944-8007

pISSN - 0094-8276

DOI - 10.1029/gl011i009p00869

Subject(s) - physics , foreshock , jovian , jupiter (rocket family) , heat flux , geophysics , electron , doppler effect , flux (metallurgy) , plasma , oscillation (cell signaling) , bow shock (aerodynamics) , plasma oscillation , shock (circulatory) , computational physics , shock wave , astrophysics , mechanics , geology , astronomy , planet , seismology , heat transfer , materials science , saturn , aftershock , biology , genetics , space shuttle , quantum mechanics , medicine , metallurgy

Analysis of Voyager plasma wave data from the Jovian foreshock has revealed the existence of a new oscillation with center frequency below f p and typically lying above the upper limit Doppler shift frequency for ion acoustic waves. The properties of these waves are consistent with modes generated by a strong electron heat flux in an unmagnetized plasma. Such modes become unstable when the effective drift velocity exceeds (n COLD /n HOT ) 1/2 times the thermal speed of the hot component. The occasional simultaneous appearance of more than one frequency band is a possible indication of multiple magnetic connection with the shock.

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