Particle acceleration at the Sun and in the heliosphere

Details Particle acceleration at the Sun and in the heliosphere Particle acceleration at the Sun and in the heliosphere

Oct 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999ssrv...90..413r&link_type=abstract

Space Science Reviews, v. 90, Issue 3/4, p. 413-491 (1999).

Physics

473

Scientific paper

Energetic particles are accelerated in rich profusion at sites throughout the heliosphere. They come from solar flares in the low corona, from shock waves driven outward by coronal mass ejections (CMEs), from planetary magnetospheres and bow shocks. They come from corotating interaction regions (CIRs) produced by high-speed streams in the solar wind, and from the heliospheric termination shock at the outer edge of the heliospheric cavity. We sample many populations near Earth, but can distinguish them readily by their element and isotope abundances, ionization states, energy spectra, angular distributions and time behavior. Remote spacecraft have probed the spatial distributions of the particles and examined new sources in situ. Most acceleration sources can be ‘seen’ only by direct observation of the particles; few photons are produced at these sites. Wave-particle interactions are an essential feature in acceleration sources and, for shock acceleration, new evidence of energetic-proton-generated waves has come from abundance variations and from local cross-field scattering. Element abundances often tell us the physics of the source plasma itself, prior to acceleration. By comparing different populations, we learn more about the sources, and about the physics of acceleration and transport, than we can possibly learn from one source alone.

Affiliated with

Also associated with

No associations

Rating

Particle acceleration at the Sun and in the heliosphere 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 Particle acceleration at the Sun and in the heliosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Particle acceleration at the Sun and in the heliosphere will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1546384