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The modulation of radiation in an electron-positron plasma

Gangadhara, RT and Krishan, V and Shukla, PK (1993) The modulation of radiation in an electron-positron plasma. In: Monthly Notices of the Royal Astronomical Society, 262 (1). pp. 151-163.

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Abstract

The modulational instability of a large-amplitude, linearly polarized electromagnetic wave propagating in an electron-positron plasma is considered, including the combined effect of relativistic mass variation of the plasma particles, harmonic generation, and the non-resonant, finite-frequency electrostatic density perturbations, all caused by the large-amplitude radiation field. The radiation from many strong sources, such as AGN and pulsars, has been observed to vary over a host of time-scales. It is possible that the extremely rapid variations in the non-thermal continuum of AGN, as well as in the non-thermal radio radiation from pulsars, can be accounted for by the modulational instabilities to which radiation may be subjected during its propagation out of the emission region.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to John Wiley and Sons.
Department/Centre: Division of Physical & Mathematical Sciences > Joint Astronomy Programme
Division of Physical & Mathematical Sciences > Physics
Date Deposited: 10 Mar 2011 06:43
Last Modified: 10 Mar 2011 06:43
URI: http://eprints.iisc.ernet.in/id/eprint/35935

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