On the nature of a typical pulsars radio emission

Details On the nature of a typical pulsars radio emission On the nature of a typical pulsars radio emission

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989plap....1..271k&link_type=abstract

In ESA, Proceedings of an International School and Workshop on Plasma Astrophysics, Volume 1 p 271-276 (SEE N89-24910 18-75)

Astronomy and Astrophysics

Astrophysics

Plasma Drift, Pulsars, Radio Bursts, Stellar Magnetospheres, Stellar Radiation, Cyclotron Resonance, Space Plasmas, Stellar Magnetic Fields, Wave Excitation

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-wave excitation exist. The first 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 particle drift motion and needs to satisfy a Cherenkov resonance condition. Due to the second mechanism lt-wave excitation is also possible. The waves excited due to the cyclotron instability cause the diffusion of particles across the magnetic field. For sufficiently large pitch angles, t-wave excitation is also possible.

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