Subcritical and supercritical interplanetary shocks - Magnetic field and energetic particle observations

Details Subcritical and supercritical interplanetary shocks - Magnetic field and energetic particle observations Subcritical and supercritical interplanetary shocks - Magnetic field and energetic particle observations

Nov 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986jgr....9111929b&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 91, Nov. 1, 1986, p. 11929-11935.

Physics

28

Bow Waves, Energetic Particles, International Sun Earth Explorers, Interplanetary Magnetic Fields, Shock Wave Propagation, Energy Spectra, Proton Energy, Solar Wind

Scientific paper

A study of 34 forward interplanetary shocks observed by ISEE 3 during 1978 and 1979 has been conducted. Magnetic field and high-energy particle data have been used, and for each shock the first critical Mach number has been determined. The first surprising result is that the majority of the observed shocks appear to be supercritical, and consistent with their supercritical character, many shocks have a foot and/or an overshoot in the magnetic field structure. Large-amplitude low-frequency waves (period of about 20 s in the spacecraft frame) are commonly observed upstream of all supercritical shocks (except for a few quasi-perpendicular shocks) and also upstream of the few subcritical shocks. Intense particle events are frequently observed at many shocks: spikes at quasi-perpendicular shocks and energetic storm particle events associated with quasi-parallel shocks can be comparably intense. The correlation of the high-energy particle peak flux with various shock parameters is in agreement with the acceleration mechanisms proposed by previous studies.

Affiliated with

Also associated with

No associations

Rating

Subcritical and supercritical interplanetary shocks - Magnetic field and energetic particle observations 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 Subcritical and supercritical interplanetary shocks - Magnetic field and energetic particle observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Subcritical and supercritical interplanetary shocks - Magnetic field and energetic particle observations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1150566