Cometary ion acceleration processes

研究成果: 雜誌貢獻期刊論文同行評審

3 引文 斯高帕斯(Scopus)

摘要

In situ spacecraft measurements at comets Giacobini-Zinner and Halley in 1985 and 1986 have revealed that the turbulent plasma environment of the extended coma of a comet could lead to the acceleration of cometary ions to energies well above their initial kinetic energies at production. A tentative scenario exists in which second-order Fermi (stochastic) acceleration is important at large distance from the comets in energizing the cometary ions while at close range ({most positive}5 x 104 km) to the bow shock first-order Fermi (diffusive shock) acceleration will play a role in hardening the ion energy spectra. Many of the kinetic aspects of the particle-wave interaction remain to be tested and developed by quantitative numerical simulations.

原文???core.languages.en_GB???
頁(從 - 到)1-7
頁數7
期刊Computer Physics Communications
49
發行號1
DOIs
出版狀態已出版 - 4月 1988

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