Ion Distribution Functions in the Vicinity of Comet Giacobini-Zinner

  1. Thomas J. Birmingham and
  2. Alexander J. Dessler
  1. T.E. Cravens

Published Online: 19 MAR 2013

DOI: 10.1029/SP027p0129

Comet Encounters

Comet Encounters

How to Cite

Cravens, T.E. (1988) Ion Distribution Functions in the Vicinity of Comet Giacobini-Zinner, in Comet Encounters (eds T. J. Birmingham and A. J. Dessler), American Geophysical Union, Washington, D.C.. doi: 10.1029/SP027p0129

Author Information

  1. Space Physics Research Laboratory, the University of Michigan, Ann Arbor, MI

Publication History

  1. Published Online: 19 MAR 2013
  2. Published Print: 1 JAN 1988

ISBN Information

Print ISBN: 9780875902395

Online ISBN: 9781118668757



  • Cometary neutrals;
  • Ion Composition Instrument (ICI);
  • Ion distribution functions;
  • Monte Carlo method;
  • Solar wind


Photoionization of neutral molecules in the coma surrounding a comet produces heavy ions which contaminate and mass-load the solar wind. Cometary ion distribution functions in the vicinity of comet Giacobini-Zinner (G/Z) are calculated using a Monte Carlo method. The distribution function calculated behind the shock has both cold (≈2 keV) and hot (≈40 keV) components.