Czechoslovak Journal of Physics

, Volume 41, Issue 4, pp 381–392 | Cite as

The method of thermodynamic parameters calculation and its application on the study of protons and alpha particles behaviour in the bow shock

  • O. Santolík
  • J. Šafránková
  • Z. Němeček


The paper deals with the behaviour of alpha particles and protons in the solar wind plasma near the Earth's bow shock. It is based on the data from the BIFRAM instrument onboard the PROGNOZ-10 satellite. The paper contains also the description of a sufficiently accurate method for macroscopic plasma parameters calculation, taking into account angular and energetic characteristics of the spectrometer used. It is shown that the actual spectrometer characteristics are indispensable, namely for a reliable evaluation of mutual ratios of velocities and temperatures for individual mass components in the solar wind. Characteristic parameters of alpha particles and proton flows, as computed by this method, show that in the Earth's bow shock vicinity the relaxation processes differ considerably for each kind of particles.


Solar Wind Plasma Parameter Alpha Particle Parameter Calculation Reliable Evaluation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Academia, Publishing House of the Czechoslovak Academy of Sciences 1991

Authors and Affiliations

  • O. Santolík
    • 1
  • J. Šafránková
    • 1
  • Z. Němeček
    • 1
  1. 1.Faculty of Mathematics and PhysicsCharles UniversityPraha 8Czechoslovakia

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