Statistics – Computation
Scientific paper
Sep 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987soph..112..365m&link_type=abstract
Solar Physics (ISSN 0038-0938), vol. 112, no. 2, 1987, p. 365-382. SERC-supported research.
Statistics
Computation
14
Energetic Particles, Interplanetary Medium, Particle Acceleration, Particle Trajectories, Solar Wind, Statistical Analysis, Computational Astrophysics, Plasma Drift, Shock Waves
Scientific paper
Numerical integration of particle trajectories is performed to evaluate the statistical acceleration coefficients DTT for 1 to 100 MeV protons in a solar wind corotating interaction region (CIR) seen at 2.5 and 5.0 AU. Acceleration is followed in the solar wind reference frame and is due to random wave-particle interactions and to random drift motion in moderate scale field gradients. Comparison is made between the time constant for statistical acceleration within this CIR and estimates for diffuse shock acceleration and adiabatic deceleration. All three time constants are of the same order, but deceleration is faster than shock acceleration which in turn is faster than statistical acceleration.
Moussas Xenophon
Quenby John J.
Valdés-Galicia Francisco J.
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