Pulsar signals from relativistic electron beams

Details Pulsar signals from relativistic electron beams Pulsar signals from relativistic electron beams

Nov 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976a%26a....52..449e&link_type=abstract

Astronomy and Astrophysics, vol. 52, no. 3, Nov. 1976, p. 449-455. Research supported by the Science Research Council and Oxfor

Astronomy and Astrophysics

Astrophysics

12

Electron Beams, Electron Plasma, Plasma Radiation, Pulsars, Relativistic Particles, Computerized Simulation, Fourier Transformation, Magnetohydrodynamic Stability, Polarization (Waves), Radiant Flux Density, Radio Emission, Synchrotron Radiation

Scientific paper

The possibility that radio emission from pulsars originates in a beam-plasma system is discussed. The curvature radiation is calculated which arises if this system is placed in a very strong curved magnetic field. Numerical experiments show that the beam instability evolves into a rather stationary wave pattern whose Fourier components are concentrated near the most unstable mode. This result leads to estimates of the radiation intensity, its autocorrelation function in time, and its bandwidth. The results are compared with measurements of pulse microstructure, and the constraints imposed on radiation mechanisms by longer-time-scale properties are shown to be satisfied.

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