Virial Theory of Direct Langmuir Collapse
- 7 August 1978
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 41 (6), 406-410
- https://doi.org/10.1103/physrevlett.41.406
Abstract
A general virial theorem is proved without any assumption of special symmetries and used to calculate the threshold and time for direct collapse of a two-dimensional Langmuir wave packet. The analysis is shown to apply to "bump-on-tail" instabilities, when the "bump" is broad, low, and at high velocity. The example of the type-III solar radioburst problem is treated both numerically and analytically.Keywords
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