Abstract
Evidence exists suggesting that not only do heliospheric shocks
accelerate particles up to energies as high as a few GeV/nuc. but that
the source of these energetic particles are pickup ions or low energy
particles present in the suprathermal tail of the solar wind
distribution. To be diffusively accelerated at a shock wave a particle
needs an energy significantly greater than that of the expected source
particles, the so-called “injection problem”. We present
here a model of particle acceleration at shocks of arbitrary obliquity
that produces particle energies sufficiently high for diffusive shock
acceleration to occur.
Original language | English |
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Pages (from-to) | 3793-3796 |
Journal | Geophysical Research Letters |
Volume | 27 |
Publication status | Published - 1 Dec 2000 |
Keywords / Materials (for Non-textual outputs)
- Interplanetary Physics: Pickup ions
- Space Plasma Physics: Shock waves