A test of Lee's quasi-linear theory of ion acceleration by interplanetary traveling shocks

Details A test of Lee's quasi-linear theory of ion acceleration by interplanetary traveling shocks A test of Lee's quasi-linear theory of ion acceleration by interplanetary traveling shocks

Nov 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986jgr....9111917k&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 91, Nov. 1, 1986, p. 11917-11928. ESA-supported research.

Physics

81

International Sun Earth Explorers, Interplanetary Medium, Ion Motion, Particle Acceleration, Shock Wave Propagation, Traveling Waves, Plasma Density, Plasma Frequencies, Proton Density (Concentration), Solar Wind

Scientific paper

Lee's (1983) quasi-linear theory of ion acceleration is tested using ISEE-3 measurements of the November 12, 1978 quasi-parallel interplanetary shock. His theory accounts with varying degrees of precision for the energetic proton spatial profiles; the dependence of the spectral index of the power law proton velocity distribution upon the shock compression ratio; the power law dependence of the upstream proton scalelength upon energy; the absolute magnitude of the upstream proton scale length; the behavior of the energetic proton anisotropy upstream and downstream of the shock; the behavior of the alpha-particle proton ratio upstream; the equality of the spatial scale lengths at the shock of the upstream waves and of the protons that resonate with them; and the dependence of the integrated wave energy density upon the proton energy density at the shock. However, the trace magnetic field frequency spectra disagree with his theory in two ways. The part of the spectrum that can resonate with the observed protons via first-order cyclotron resonance is flat, whereas Lee's theory predicts an f exp - 7/4 frequency dependence for the November 12 shock. Higher frequency waves, which could not resonate with the observed upstream protons, increased in amplitude as the shock approached, suggesting that they too were generated by the shock.

Affiliated with

Also associated with

No associations

Rating

A test of Lee's quasi-linear theory of ion acceleration by interplanetary traveling shocks 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 A test of Lee's quasi-linear theory of ion acceleration by interplanetary traveling shocks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A test of Lee's quasi-linear theory of ion acceleration by interplanetary traveling shocks will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1150555