Results 1 to 10 of about 932 (205)
Observations of the Outer Heliosphere, Heliosheath, and Interstellar Medium [PDF]
Space Science Reviews, 2022 AbstractThe Voyager spacecraft have left the heliosphere and entered the interstellar medium, making the first observations of the termination shock, heliosheath, and heliopause. New Horizons is observing the solar wind in the outer heliosphere and making the first direct observations of solar wind pickup ions.
Rudolf Von Steiger +2 more
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Plasma and Variability in the Heliosheath [PDF]
Journal of Physics: Conference Series, 2015 Voyager 2 (V2) is making the first direct plasma measurements of the heliosheath and is moving outward about 3 AU/yr. This paper has two foci. It provides an update on plasma conditions in the heliosheath out to 108 AU and discusses the variability of plasma parameters in the heliosheath.
J. D. Richardson
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Mirror and Firehose Instabilities in the Heliosheath [PDF]
The Astrophysical Journal, 2008 We investigate the nature of the heliosheath plasma behind the termination shock across which jump relations in anisotropic MHD are formulated. Along side analytical results for downstream parameters in the strictly parallel and perpendicular cases we numerically solve the Rankine-Hugoniot relations for arbitrary shock angle and strength. We then focus
V. Génot
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Earth and Planetary Physics, 2021 Voyager 1 occasionally detected sudden jumps of the local interstellar magnetic field strength since its heliopause crossing in August 2012. These events were believed to be associated with outward propagating solar wind shocks originating in the inner ...
XiaoCheng Guo +3 more
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Magnetic structures in the heliosheath [PDF]
Geophysical Research Letters, 2007 We propose a solitary wave model for small scale magnetic structures observed in the solar wind and more recently in the Voyager 1 observations of the heliosheath. The model is based on the recent, fully nonlinear theory of solitary waves by McKenzie et al. (2001, 2004). Our solutions i.e., magnetic holes, humps, trains of holes and humps, are strongly
Gary P Zank
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The Impact of Pickup Ion Thermal Spread on Pickup Ion Ring-beam-driven Instabilities and Scattering in the Outer Heliosheath [PDF]
The Astrophysical Journal, 2023 The present study investigates the unstable waves driven by the pickup ions of ring-beam distributions with various pickup angles and pickup ion temperatures in the outer heliosheath, using both linear instability analysis and hybrid simulations.
Ameneh Mousavi +2 more
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Interaction of Inner Heliosheath Ions with Electromagnetic Ion Cyclotron Waves [PDF]
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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Scattering of Continuously Injected Pickup Ions of Oblique Pickup Angles in the Outer Heliosheath [PDF]
The Astrophysical JournalPitch angle scattering of pickup ions (PUIs) in the outer heliosheath is studied using two-dimensional hybrid simulations, with the PUIs continuously injected at specified injection rates and pickup angles.
Ding Sheng +3 more
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Uncertainties in the heliosheath ion temperatures [PDF]
Annales Geophysicae, 2018 The Voyager plasma observations show that the physics of the heliosheath is rather complex and that the temperature derived from observation particularly differs from expectations.
K. Scherer +7 more
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Plasma temperature distributions in the heliosheath [PDF]
Geophysical Research Letters, 2008 Voyager 2 crossed the termination shock (TS) in August 2007 and began observations of the heliosheath. We present the first 400 days of heliosheath plasma data and propose a consistent picture of the energy flow across the TS. Roughly 15% of the plasma flow energy lost at the shock heats the thermal ions and most of the rest of this energy heats the ...
John Richardson
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