DIFFUSION OF ENERGETIC PARTICLES IN TURBULENT MAGNETOHYDRODYNAMIC PLASMAS

Journal Article · Thu May 10 00:00:00 EDT 2012 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/750/2/150· OSTI ID:22034487

Wisniewski, M; Spanier, F ^[1]; Kissmann, R ^[2]

---

1. Lehrstuhl fuer Astronomie, Universitaet Wuerzburg, Emil-Fischer-Str. 31, D-97074 Wuerzburg (Germany)
2. Institut fuer Astro- und Teilchenphysik, Leopold Franzens Universitaet Innsbruck, Technikerstrasse 25/8, A-6020 Innsbruck (Austria)

In this paper, we investigate the transport of energetic particles in turbulent plasmas. A numerical approach is used to simulate the effect of the background plasma on the motion of energetic protons. The background plasma is in a dynamically turbulent state found from numerical magnetohydrodynamic simulations, where we use parameters typical for the heliosphere. The implications for the transport parameters (i.e., pitch-angle diffusion coefficients and mean free path) are calculated and deviations from the quasi-linear theory are discussed.

• OSTI ID: 22034487
• Journal Information: Astrophysical Journal, Vol. 750, Issue 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ASTRONOMY
ASTROPHYSICS
CHARGED-PARTICLE TRANSPORT
COMPUTERIZED SIMULATION
COSMIC PROTONS
DIFFUSION
HELIOSPHERE
INCLINATION
MAGNETOHYDRODYNAMICS
MEAN FREE PATH
PLASMA
PLASMA SIMULATION
TURBULENCE