A possible mechanism for the pulsar radio emission

Details A possible mechanism for the pulsar radio emission A possible mechanism for the pulsar radio emission

Oct 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977ap%26ss..51..303h&link_type=abstract

Astrophysics and Space Science, vol. 51, no. 2, Oct. 1977, p. 303-318.

Astronomy and Astrophysics

Astrophysics

1

Plasma-Particle Interactions, Pulsars, Radio Emission, Relativistic Particles, Stellar Models, Charged Particles, Equations Of Motion, Flow Velocity, Particle Beams, Particle Motion, Relativistic Velocity, Stellar Magnetic Fields, Wave Propagation

Scientific paper

The possibility of radio emission is considered within a model which produces the beam-plasma system near a pulsar. A longitudinal instability develops near the light cylinder for a particular choice of parameters adopted. The excited wave strongly oscillates the beam particles perpendicular to its average velocity on one hand, and forms bunches of them on the other. Consequently, coherent radiation is expected. The frequency of the emission falls within the radio band, but the intensity turns out to be too low to explain observations. An appreciable enhancement of the beam number density over the Goldreich-Julian value is needed if the mechanism discussed is responsible for pulsar radio emission.

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