On the nature of a "typical" pulsar radio emission.

Details On the nature of a "typical" pulsar radio emission. On the nature of a "typical" pulsar radio emission.

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989plap.work..271k&link_type=abstract

Joint Varenna-Abastumani International School and Workshop on Plasma Astrophysics, p. 271 - 276

Astronomy and Astrophysics

Astrophysics

Pulsars: Radio Radiation, Pulsar Magnetospheres: Cyclotron Radiation

Scientific paper

The possibility of the excitation of electromagnetic (t) as well as of longitudinal-transverse (lt) waves in the magnetosphere of a "typical" pulsar is discussed. Two mechanisms of the t-waves excitation exist. The first mechanism is connected with the cyclotron resonance between t-waves and high-energy particles of both: the "tail" of the distribution function and the primary beam. The second mechanism is conditioned by the particles drift motion and needs to satisfy a Cherenkov resonance condition. Due to the second mechanism the lt-waves excitation is also possible. The waves excited due to the cyclotron instability cause the diffusion of particles across the magnetic field. For the sufficiently large pitch angles the additional possibility of t-waves excitation appears.

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