Escaping radio emission from pulsars: Possible role of velocity shear
Abstract
It is demonstrated that the velocity shear, intrinsic to the e+e(minus) plasma present in the pulsar magnetosphere, can efficiently convert the nonescaping longitudinal Langmuir waves (produced by some kind of a beam or stream instability) into propagating (escaping) electromagnetic waves. It is suggested that this shear induced transformation may be the basic mechanism needed for the eventual generation of the observed pulsar radio emission.
- Publication:
-
Texas Univ., Austin Report
- Pub Date:
- January 1997
- Bibcode:
- 1997uta..rept.....M
- Keywords:
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- Pulsars;
- Plasmas (Physics);
- Radio Emission;
- Electromagnetic Radiation;
- Longitudinal Waves;
- Pulsar Magnetospheres;
- Space Radiation