New Techniques for Charged Particle Measurements in the Interplanetary Medium

  1. J. H. Waite Jr.,
  2. J. L. Burch and
  3. R. L. Moore
  1. R. P. Lin

Published Online: 18 MAR 2013

DOI: 10.1029/GM054p0333

Solar System Plasma Physics

Solar System Plasma Physics

How to Cite

Lin, R. P. (1989) New Techniques for Charged Particle Measurements in the Interplanetary Medium, in Solar System Plasma Physics (eds J. H. Waite, J. L. Burch and R. L. Moore), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM054p0333

Author Information

  1. Space Sciences Laboratory, University of California, Berkeley, CA 94720

Publication History

  1. Published Online: 18 MAR 2013
  2. Published Print: 1 JAN 1989

ISBN Information

Print ISBN: 9780875900742

Online ISBN: 9781118664315

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Keywords:

  • Space plasmas;
  • Sun;
  • Magnetosphere;
  • Astrophysics

Summary

The interplanetary medium may be the ideal environment for in situ studies of particle acceleration processes of astrophysical interest and for studies of basic physical processes in collisionless plasmas. New instrumentation, on the upcoming GGS and the Cluster and SOHO missions of the International Solar-Terrestrial Physics (ISTP) program, will have the sensitivity and dynamic range to obtain the first comprehensive measurements of the three-dimensional distribution of suprathermal particle populations in the interplanetary medium from solar wind to cosmic ray energies. The temporal resolution of the planned particle measurements, although much improved over previous instrumentation, is still far short of time scales for evolution of wave-particle phenomena in the interplanetary medium. Wave-particle correlation techniques, however, can detect perturbations of the particle distribution functions by large amplitude plasma waves, on time scales relevant to wave-particle interactions.