Radial variations of flow parameters and composition of cold heavy ions within 50,000 km of Halley's nucleus
Composition and flow parameter of cold heavy ions from the PICCA instrument on Giotto within a cometocentric distance of 50,000 km are presented. A distinct boundary at about 27,000 km, where the flow parameters changed abruptly, is identified and its physical significance is discussed. Radial profiles of heavy ion groups and abundance ratios are given.
Korth, A.↗