Irregular Magnetic Fields and Energetic Particles near the Termination Shock

Details Irregular Magnetic Fields and Energetic Particles near the Termination Shock Irregular Magnetic Fields and Energetic Particles near the Termination Shock

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aipc..719..266g&link_type=abstract

PHYSICS OF THE OUTER HELIOSPHERE. AIP Conference Proceedings, Volume 719, pp. 266-271 (2004).

Physics

1

Particle Emission, Solar Wind, Interplanetary Magnetic Fields, Solar Wind Plasma, Sources Of Solar Wind, Planetary Bow Shocks, Interplanetary Shocks

Scientific paper

The physics of magnetic field-line meandering and the associated energetic-particle transport in the outer heliosphere is discussed. We assume that the heliospheric magnetic field, which is frozen into the solar-wind plasma, is composed of both an average and random component. The power in the random component is dominated by spatial scales that are very large (by a few orders of magnitude) compared to the shock thickness. The results from recent numerical simulations are presented. They reveal a number of characteristics which may be related to recent Voyager 1 observations of energetic particles and fields. For instance, low-energy (tens of keV) particles are seen well upstream of the shock that also have large pitch-angle anisotropies. Furthermore, low-energy particles are readily accelerated by the shock, even though their mean-free paths are very large compared to their gyroradii. When averaging over the entire system, the downstream spectra are qualitatively consistent with the theory of diffusive shock acceleration.

Affiliated with

Also associated with

No associations

Rating

Irregular Magnetic Fields and Energetic Particles near the Termination Shock does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Irregular Magnetic Fields and Energetic Particles near the Termination Shock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Irregular Magnetic Fields and Energetic Particles near the Termination Shock will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1059978