Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...222.1080m&link_type=abstract
Astrophysical Journal, Part 1, vol. 222, June 15, 1978, p. 1080-1096.
Astronomy and Astrophysics
Astrophysics
24
Astronomical Models, Energetic Particles, Interplanetary Medium, Solar Corpuscular Radiation, Solar Flares, Graphs (Charts), Particle Density (Concentration), Proton Flux Density, Solar Electrons, Solar Protons
Scientific paper
The basic propagation process of flare-associated energetic particles in interplanetary space is studied on the basis of a model which combines a Gaussian coronal injection profile and interplanetary particle densities found by a theory of focused diffusion. The model is used to describe 30 electron and proton events which originate from the western hemisphere of the sun. A comparison of calculated and observed density profiles shows that the scattering mean free path is 0.1-0.3 AU for 4-80 MeV protons. The value is two or three times smaller for 0.5-1.1 and 3-12 MeV electrons. Thus the scattering mean free path is only slightly rigidity-dependent, contrary to that predicted by the quasi-linear theory of pitch-angle scattering. The rms width is found to be less than an hour for most proton and electron events. This width, which decreases with velocity, is not rigidity-dependent.
Earl James A.
Ma Sung L. S.
No associations
LandOfFree
Interplanetary propagation of flare-associated energetic particles 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 Interplanetary propagation of flare-associated energetic particles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interplanetary propagation of flare-associated energetic particles will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-787899