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The standard (non-relativistic) $\kappa$-distribution is widely used to fit data and to describe macroscopic thermodynamical behavior, e.g.\ the pressure (temperature) as the second moment of the distribution function. By contrast to a Maxwellian dis
Externí odkaz:
http://arxiv.org/abs/1907.01365
Autor:
Fahr, Hans J., Dutta-Roy, Robindro
We study the behaviour of shocked wind-electrons leaving wind-driving stars after undergoing the outer wind termination shock. As an example, we describe the evolution of the keV-energetic electron distribution function downstream of the heliospheric
Externí odkaz:
http://arxiv.org/abs/1901.05848
Autor:
Scherer, Klaus, Fahr, Hans Jörg, Fichtner, Horst, Sylla, Adama, Richardson, John D., Lazar, Marian
Publikováno v:
Ann. Geophys., 36, 37-46, 2018
The Voyager plasma observations show that the physics of the heliosheath is rather complex, and especially that the temperature derived from observation differs from expectations. To explain this fact the temperature in the heliosheath should be base
Externí odkaz:
http://arxiv.org/abs/1802.00331
Publikováno v:
Frontiers in Astronomy & Space Sciences; 2024, p1-17, 17p
The study aims at a derivation of generalized \RH relations, especially that for the entropy, for the case of different upstream/downstream polytropic indices and their implications. We discuss the solar/stellar wind interaction with the interstellar
Externí odkaz:
http://arxiv.org/abs/1610.04381
Autor:
Fahr, Hans J., Verscharen, Daniel
Publikováno v:
Astron. Astrophys. 587, L1, 2016
We consider a fast magnetosonic multifluid shock as a representation of the solar-wind termination shock. We assume the action of the transition happens in a three-step process: In the first step, the upstream supersonic solar-wind plasma is subject
Externí odkaz:
http://arxiv.org/abs/1602.04263
Publikováno v:
Astron. Astrophys. 579, A18, 2015
In the majority of the literature on plasma shock waves, electrons play the role of "ghost particles," since their contribution to mass and momentum flows is negligible, and they have been treated as only taking care of the electric plasma neutrality
Externí odkaz:
http://arxiv.org/abs/1505.02676
Publikováno v:
A&A 571, A78 (2014)
Ambient plasma electrons undergo strong heating in regions associated with compressive traveling interplanetary solar-wind bulk-velocity jumps due to their specific interactions with the jump-inherent electric fields. After thermalization of this ene
Externí odkaz:
http://arxiv.org/abs/1409.3894