On the electron temperature downstream of the solar wind termination shock [PDF]
Annales Geophysicae, 2013 In this paper we study the temperatures of electrons convected with the solar wind to large solar distances and finally transported over the solar wind termination shock. Nearly nothing, unless at high energies in the cosmic ray regime, is known about
I. V. Chashei, H. J. Fahr
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The role of solar wind electrons at the solar wind termination shock [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2013 Abstract Voyager 2 plasma observations have recently revealed that, as predicted by theory, there exists a solar wind termination shock at 87 au. However, it is evidently different from classical expectations, for instance revealing the downstream solar wind protons still to be in a supersonic mode. In this paper we show that in order to
H J Fahr, S V Chalov
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On the “injection problem” at the solar wind termination shock [PDF]
Astronomy and Astrophysics, 2005 This article presents an integrated analytical model on the injection efficiencies of the different ion species of the Anomalous component of the Cosmic Rays (ACRs) at the solar wind termination shock. We find that the injection into diffusive (first-order Fermi) acceleration is dominated by parallel ion diffusion and not by perpendicular diffusion ...
Jakobus le Roux +2 more
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The multi-fluid pressures downstream of the solar wind termination shock [PDF]
Astronomy and Astrophysics, 2013 In this paper we consider a multi-fluid plasma that describes the upstream solar wind at its passage over the solar wind termination shock. In one respect, the plasma at the shock reacts like a joint fluid that is described by a single compression ratio. This ratio depends on all upstream and downstream pressures of the magnetohydrodynamic (MHD) plasma.
H -J Fahr, M Siewert
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Effects of the solar wind termination shock and heliosheath on theheliospheric modulation of galactic and anomalous Helium [PDF]
Annales Geophysicae, 2004 The interest in the role of the solar wind termination shock and heliosheath in cosmic ray modulation studies has increased significantly as the Voyager 1 and 2 spacecraft approach the estimated position of the solar wind termination shock.
U. W. Langner, M. S. Potgieter
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The heliospheric modulation of cosmic ray protons during increased solar activity: effects of the position of the solar wind termination shock and of the heliopause [PDF]
Annales Geophysicae, 2005 The effects on the modulation of cosmic ray protons of different positions for the solar wind termination shock and for the heliopause are illustrated for moderate solar maximum conditions.
U. W. Langner +2 more
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ION SUPERDIFFUSION AT THE SOLAR WIND TERMINATION SHOCK [PDF]
The Astrophysical Journal, 2009 We investigate the propagation of 0.54-3.5 MeV ions accelerated at the termination shock of the solar wind. Data are from Voyager 2 and refer to a time interval about one year long, just before the Voyager 2 termination shock crossing at the end of 2007 August, at roughly 83.7 AU.
PERRI S, ZIMBARDO, Gaetano
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Breathing of heliospheric structures triggered by the solar-cycle activity [PDF]
Annales Geophysicae, 2003 Solar wind ram pressure variations occuring within the solar activity cycle are communicated to the outer heliosphere as complicated time-variabilities, but repeating its typical form with the activity period of about 11 years.
K. Scherer, H. J. Fahr
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Reforming perpendicular shocks in the presence of pickup protons: initial ion acceleration [PDF]
Annales Geophysicae, 2005 Acceleration processes associated with the heliospheric termination shock may provide a source of anomalous cosmic rays (ACRs). Recent kinetic simulations of supercritical, quasi-perpendicular shocks have yielded time varying shock solutions that ...
R. E. Lee +4 more
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Interaction of Inner Heliosheath Ions with Electromagnetic Ion Cyclotron Waves
The Astrophysical Journal, 2023 Inner heliosheath (IHS) ions are expected to be exposed to various waves, shocks, and turbulence, which can affect ion distributions and thus their charge-exchange rates with interstellar neutral atoms.
Dae-Young Lee, Sung-Jun Noh
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