Journal ArticleDOI
Multispacecraft observations of energetic ions upstream and downstream of the bow shock
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TLDR
In the magnetosheath, no gradient or streaming is found in the upstream direction as discussed by the authors, consistent with first-order Fermi acceleration at the bow shock and subsequent downstream convection, and exclude the possibility of a magnetospheric source for these particles.Abstract:
Simultaneous measurements of energetic protons and alpha particles were obtained inside and outside of the magnetopause and upstream and downstream of the bow shock. In the magnetosheath, no gradient or streaming is found in the upstream direction. The present results are consistent with first-order Fermi acceleration at the bow shock and subsequent downstream convection, and exclude the possibility of a magnetospheric source for these particles.read more
Citations
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Journal ArticleDOI
Ion Acceleration at the Earth’s Bow Shock
TL;DR: The Earth's bow shock is the most studied example of a collisionless shock in the solar system as discussed by the authors, and it is also widely used to model or predict the behaviour at other astrophysical shock systems.
Journal ArticleDOI
Statistical analysis of diffuse ion events upstream of the Earth's bow shock
TL;DR: In this paper, a statistical study of diffuse energetic ion events and their related waves upstream of the Earth's bow shock was performed using data from the Active Magnetospheric Particle Tracer Explorers/Ion Release Module (AMPTE/IRM) satellite over two 5-month periods in 1984 and 1985.
Journal ArticleDOI
Radial streaming anisotropies of charged particles accelerated at the solar wind termination shock
J. R. Jokipii,Joe Giacalone +1 more
TL;DR: In this article, the radial anisotropy of the charged particles accelerated at the termination shock of the solar wind has been investigated in a number of models, including diffusion approximation and directly integrating test particle trajectories in a turbulent magnetic field.
Journal ArticleDOI
Origins of energetic ions in the cusp
TL;DR: In this paper, it was shown that the average values of these parameters in the cusp are comparable to those at quasi-parallel shocks and that no local acceleration is required to explain the observed CEP events up to 150 keV/e.
Journal ArticleDOI
Energetic ion distributions on both sides of the Earth's magnetopause
Nicholas P. Paschalidis,E. T. Sarris,Stamatios M. Krimigis,R. W. McEntire,M. D. Levine,Ioannis A. Daglis,Georgios C. Anagnostopoulos +6 more
TL;DR: In this article, the authors analyzed ion distributions on both sides of the magnetopause in order to investigate any local time and energy dependence, giving information about physical processes at the magnetosphere and the bow shock.
References
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Journal ArticleDOI
Coupled hydromagnetic wave excitation and ion acceleration upstream of the earth's bow shock
TL;DR: In this paper, the authors extended the Lee (1982) self-consistent theory of upstream wave excitation and particle energization to address observations by Voyager 2 of sunward propagating MHD waves and diffuse suprathermal particle populations upstream of the Jovian bow shock.
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Observations of two distinct populations of bow shock ions in the upstream solar wind
TL;DR: In this article, the LASL/MPI fast plasma experiments on ISEE 1 and 2 reveal the presence of two distinct and mutually exclusive populations of low energy (no more than 40 keV) ions apparently accelerated at the bow shock.
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A statistical survey of ions observed upstream of the Earth's bow shock: Energy spectra, composition, and spatial variation
TL;DR: In this article, the characteristics of 33 diffuse particle events in the energy range from ∼30 to ∼130 keV/Q observed upstream of the earth's bow shock have been determined.
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Simultaneous multispacecraft observations of energetic proton bursts inside and outside the magnetosphere
TL;DR: In this paper, it was found that proton bursts are present nearly simultaneously in the vicinity of the outer belt trapping boundary, in the low-latitude magnetotail, and upstream from the bow shock.
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Upstream energetic ions and electrons: Bow shock‐associated or magnetospheric origin?
TL;DR: In this paper, an analysis of 35 proton bursts observed with the Max-Planck-Institut/University of Maryland sensor system on ISEE 3 far upstream of the earth's bow shock is made.