Search Publications

Properties of plasma electrons in the magnetic pile-up region of comet Halley.

Anderson, K. A.; Rème, H.; Korth, A. +6 more

In the environment of comet P/Halley, a sharp transition, named the cometopause, was detected by the VEGA and GIOTTO spacecraft around 170000 km from the nucleus. In electron measurements, a clear discontinuity was detected 20% closer to the nucleus, than the cometopause as seen in the ion measurements. Significant changes in the electron distribu…

Evidence for the field line reconnection process in the particle and magnetic field measurements obtained during the Giotto-Halley encounter.

Neubauer, F. M.; Korth, A.; Daly, P. +5 more

Measurements of low (E = 250 - 1000 eV) and high (E = 60 to >300 keV) energy particles as well as the magnetic field obtained during the Giotto-Halley encounter on 13/14 March 1986 are used to study the field line merging process. Strong changes in the pitch angle distribution of energetic ions are observed simultaneously. The observations are …