High resolution VEGA 1 and 2 magnetic measurements in the cometary magnetosphere and magnetosheath of Halley reveal the presence of fluctuations with the signature expected for the mirror instability. This instability is a mechanism by which homogeneously produced cometary ions with a large perpendicular temperature anisotropy can be concentrated into discrete linear features. Thus, the mirror instability may provide a new mechanism for the generation of cometary rays. To our knowledge the presence of this instability in the cometary plasma was not predicted.
No takes yet. Share an insight, caveat, or question.
Russell et al. (1987) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: