Revisiting Ulysses electron data with a triple fit of velocity distributions

@article{Scherer2022RevisitingUE,
  title={Revisiting Ulysses electron data with a triple fit of velocity distributions},
  author={Klaus Scherer and Edin Husidic and Marian Lazar and Horst Fichtner},
  journal={Astronomy \& Astrophysics},
  year={2022}
}
Context. Given their uniqueness, the Ulysses data can still provide us with valuable new clues about the properties of plasma pop- ulations in the solar wind, and especially about their variations with heliographic coordinates. In the context of kinetic waves and instabilities in the solar wind plasma, the electron temperature anisotropy plays a crucial role. To date, two electron populations (the core and the halo) have been surveyed using anisotropic fitting models, limited in general to the… 

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Revisiting the Ulysses electron data with a triple fit of velocity distributions Appendix A: The pressure and temperature moments We repeat here shortly the definitions given in Paschmann et al

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Revisiting Ulysses electron data with a triple fit of velocity distributions

    The total pressure Ptot is the sum of the thermal pressure plus (twice) the ram pressure

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