期刊
ASTROPHYSICAL JOURNAL
卷 721, 期 2, 页码 1164-1173出版社
IOP PUBLISHING LTD
DOI: 10.1088/0004-637X/721/2/1164
关键词
instabilities; plasmas; pulsars: general; radiation mechanisms: non-thermal; waves
资金
- German-Israeli Foundation for Scientific Research and Development [I-804-218.7/2003]
- Israeli Science Foundation [737/07]
The curvature-drift instability has long been considered as a viable mechanism for pulsar radio emission. We reconsidered this mechanism by finding an explicit solution describing the propagation of short electromagnetic waves in a plasma flow along curved magnetic field lines. We show that even though the waves could be amplified, the amplification factor remains very close to unity; therefore, this mechanism is unable to generate high brightness temperature emission from initial weak fluctuations.
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