Journal ArticleDOI
Energization of solar wind ions by reflection from the Earth's bow shock
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In this article, a simple reflection model has been proposed in which the particles gain energy by displacement parallel to the interplanetary electric field, and the energy gained in the reflection can be described as a function of the angles between the magnetic field, the solar wind velocity and the local shock normal.Abstract:
The existence of ion beams with energies a few times the solar wind energy and streaming outward from the earth's bow shock has been known for some time. To explain the observed ion energies, a simple reflection model has been proposed in which the particles gain energy by displacement parallel to the interplanetary electric field. In this model the energy gained in the reflection can be described as a function of the angles between the interplanetary magnetic field, the solar wind velocity, and the local shock normal. Ion beams under widely varying conditions have been observed in ISEE 1 and 2. For 18 cases, with beam energies ranging from approximately 1.4 to 30 times the solar wind energy, a comparison between the observed and the predicted beam energies has been made.read more
Citations
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Journal ArticleDOI
A three-dimensional plasma and energetic particle investigation for the wind spacecraft
Robert P. Lin,K. A. Anderson,S. Ashford,C. W. Carlson,D. W. Curtis,Robert E. Ergun,Davin Larson,James P. McFadden,Matthew D. McCarthy,George K. Parks,Henri Rème,J. M. Bosqued,J. Coutelier,F. Cotin,C. d'Uston,K. P. Wenzel,T. R. Sanderson,J. P. G. Henrion,J. C. Ronnet,G. Paschmann +19 more
TL;DR: In this article, the authors used top-hat symmetrical spherical section electrostatic analyzers with microchannel plate detectors to measure ions and electrons from ∼3 eV to 30 keV.
Journal ArticleDOI
Evidence for magnetic field reconnection at the Earth's magnetopause
Bengt U. Ö. Sonnerup,Götz Paschmann,I. Papamastorakis,N. Sckopke,Gerhard Haerendel,S. J. Bame,J. R. Asbridge,J. T. Gosling,Christopher T. Russell +8 more
TL;DR: In this article, 11 passes of the ISEE satellites through the frontside terrestrial magnetopause were identified, where the plasma velocity in the magnetic field and boundary layer was substantially larger than in the magnetosheath, with a view to determining whether the velocity enhancements can be explained by magnetic field reconnection.
Journal ArticleDOI
The plasma physics of shock acceleration
Frank C. Jones,Donald C. Ellison +1 more
TL;DR: In this paper, a review of the history and theory of particle acceleration is presented, paying particular attention to theories of parallel shocks which include the backreaction of accelerated particles on the shock structure, and the work that computer simulations, both plasma and Monte Carlo, are playing in revealing how thermal ions interact with shocks.
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.
References
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Journal ArticleDOI
Particle Acceleration by Astrophysical Shocks
TL;DR: In this article, a new mechanism is proposed for acceleration of a power-law distribution of cosmic rays with approximately the observed slope, where high-energy particles in the vicinity of a shock are scattered by Alfven waves carried by the converging fluid flow leading to a first-order acceleration process in which the escape time is automatically comparable to the acceleration time.
Journal ArticleDOI
Average and unusual locations of the Earth's magnetopause and bow shock
TL;DR: The average and unusual locations of magnetopause and bow shock positions observed by IMP spacecraft were analyzed in this paper, showing that the bow shock position is unusual for the Earth's magnetic field.
Journal ArticleDOI
Outward flow of protons from the Earth's bow shock
Book
Shock waves in collisionless plasmas
TL;DR: In this article, a book on shock waves in collisionless plasmas covering basic equations and classification of shock structures, magnetosonic waves, shocks and solitons, electrostatic shocks, etc.
Shock waves in collisionless plasmas
D. A. Tidman,N. A. Krall +1 more
TL;DR: In this paper, a book on shock waves in collisionless plasmas covering basic equations and classification of shock structures, magnetosonic waves, shocks and solitons, electrostatic shocks, etc.