Energetic Water-Group Ions at Comet Giacobini-Zinner: An Overview of Observations by the EPAS Instrument
- Alan Johnstone
Published Online: 26 MAR 2013
Copyright 1991 by the American Geophysical Union.
Cometary Plasma Processes
How to Cite
Cowley, S. W. H., Balogh, A., Hynds, R. J., Staines, K., Yates, T. S., Daly, P. W., Richardson, I. G., Sanderson, T. R., Tranquille, C. and Wenzel, K.-P. (1991) Energetic Water-Group Ions at Comet Giacobini-Zinner: An Overview of Observations by the EPAS Instrument, in Cometary Plasma Processes (ed A. Johnstone), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM061p0319
- Published Online: 26 MAR 2013
- Published Print: 1 JAN 1991
Print ISBN: 9780875900278
Online ISBN: 9781118663660
- Space plasmas;
An overview is presented of the observations of energetic (45–480 keV) cometary water group ions made by the EPAS instrument on the ICE spacecraft during the fly-by of comet Giacobini-Zinner in September 1985. The discussion covers ion observations in the large-scale ion pick-up region surrounding the comet on ∼106 km spatial scales, observations of the cometary shock at ∼105 km and the region of slowed mass-loaded flows which occur downstream, and the finite gyroradius effects which occur near closest approach.