Fast shocks at the edges of hot diamagnetic cavities upstream from the earth's bow shock

Details Fast shocks at the edges of hot diamagnetic cavities upstream from the earth's bow shock Fast shocks at the edges of hot diamagnetic cavities upstream from the earth's bow shock

Apr 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jgr....92.3187f&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 92, April 1, 1987, p. 3187-3194. DOE-sponsored research.

Physics

28

Bow Waves, Diamagnetism, Interplanetary Magnetic Fields, Shock Wave Propagation, Solar Wind, Space Plasmas, Electron Distribution, Plasma Waves, Propagation Velocity

Scientific paper

Recently, several events described as hot expanding diamagnetic cavities have been observed upstream from the earth's bow shock using the ISEE 1 and 2 spacecraft. It has been suggested that fast shocks may form at the edges of some of these events because of the rapid expansion of the cavities. Here, plasma density, temperature, velocity, and total field changes across the edges of several events were examined, and these changes were found to be consistent with the presence of shocks there. The presence of flat-topped electron distributions and occasional electron beams at and down-stream from the edges provides additional evidence for shocks. Plasma wave observations also show shocklike electrostatic noise at the edges of several events. It is concluded that the edges of diamagnetic cavity events are often shocks, with a range of shock strengths similar to that observed in the interplanetary medium. The range of shock strengths may be the result of different convection and/or expansion speeds of the cavities.

Affiliated with

Also associated with

No associations

Rating

Fast shocks at the edges of hot diamagnetic cavities upstream from the earth's bow 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 Fast shocks at the edges of hot diamagnetic cavities upstream from the earth's bow shock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fast shocks at the edges of hot diamagnetic cavities upstream from the earth's bow shock will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1348831