Alfven wave amplifications and generation at cometary bow shocks

W. H. Ip, J. F. McKenzie

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The possible effect of hydromagnetic wave amplification and generation at cometary bow shocks is investigated by means of a planar hydromagnetic shock model. For the inbound crossing of comet Halley's bow shock, it is found that the transmission of the sunward-streaming hydromagnetic waves through the bow shock could lead to the enhancement of its wave amplitude by a factor of 2-3 and the generation of Alfvén waves with the opposite helicity. The plasma observations during inbound crossing of comet Halley's bow shock provide some evidence for such effect.

Original languageEnglish
Pages (from-to)1045-1048
Number of pages4
JournalPlanetary and Space Science
Volume39
Issue number7
DOIs
StatePublished - Jul 1991

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