Results 1 to 10 of about 2,360 (188)
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.
J D Richardson, L F Burlaga, H A Elliott
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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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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
K Avinash, G P Zank
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Anomalous cosmic rays in the heliosheath [PDF]
AIP Conference Proceedings, 2008 We report on Voyager 1 and 2 observations of anomalous cosmic rays in the outer heliosphere. The energy spectrum of anomalous cosmic ray helium as each spacecraft crossed the solar wind termination shock into the heliosheath remained modulated.
A. C. Cummings +11 more
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The formation of magnetic depletions and flux annihilation due to reconnection in the heliosheath [PDF]
, 2017 The misalignment of the solar rotation axis and the magnetic axis of the Sun produces a periodic reversal of the Parker spiral magnetic field and the sectored solar wind.
Drake, J.F. +3 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 ...
J D Richardson
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Recovery of 150-250 MeV/nuc Cosmic Ray Helium Nuclei Intensities Between 2004-2010 Near the Earth, at Voyager 2 and Voyager 1 in the Heliosheath - A Two Zone Helioshpere [PDF]
, 2011 The recovery of cosmic ray He nuclei of energy ~150-250 MeV/nuc in solar cycle #23 from 2004 to 2010 has been followed at the Earth using IMP and ACE data and at V2 between 74-92 AU and also at V1 beyond the heliospheric termination shock (91-113 AU ...
Burger +29 more
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Interstellar hydrogen ionization in the heliosheath [PDF]
Journal of Geophysical Research: Space Physics, 2015 AbstractThe expanding solar wind plasma undergoes a shock transition at the interstellar boundary of the solar system and fills the inner heliosheath, the region between the termination shock and the heliopause. The nonequilibrium heliosheath plasma is a main source of energetic neutral atoms that allow remote probing of the heliospheric interface ...
Mike Gruntman
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The "Puck" energetic charged particle detector: Design, heritage, and advancements. [PDF]
J Geophys Res Space Phys, 2016 Abstract Energetic charged particle detectors characterize a portion of the plasma distribution function that plays critical roles in some physical processes, from carrying the currents in planetary ring currents to weathering the surfaces of planetary objects.
Clark G +19 more
europepmc +2 more sources