Particle Acceleration and Alfv’en Wave Generation at the April 4, 2001 Interplanetary Shock

Journal Article · Tue May 15 04:00:00 EDT 2018 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S106377611804009X· OSTI ID:22749859

Taneev, S. N.; Berezhko, E. G. ^[1]

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1. Russian Academy of Sciences, Shafer Institute of Cosmophysical Research and Aeronomy, Siberian Branch (Russian Federation)

Based on the theory of diffusive shock acceleration of charged particles, we investigate the formation of proton spectra and the generation of an Alfv’en turbulence spectrum by accelerated (storm) particles at the interplanetary shock front in the event occurred at 14:22 UT on April 4, 2001. We formulate a scenario whereby a satisfactory theoretical description of the observed proton and Alfv’en wave spectra obtained from measurements becomes possible: the propagation of solar cosmic rays in interplanetary space before the interplanetary shock arrival at the Earth’s orbit creates an enhanced level of Alfv’en turbulence in the solar wind, which reduces the diffusion coefficient of particles and increases the efficiency of their acceleration.

• OSTI ID: 22749859
• Journal Information: Journal of Experimental and Theoretical Physics, Journal Name: Journal of Experimental and Theoretical Physics Journal Issue: 5 Vol. 126; ISSN JTPHES; ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CHARGED PARTICLES
COSMIC RADIATION
INTERPLANETARY SPACE
PROTON SPECTRA
SOLAR WIND