Other
Scientific paper
Apr 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977mnras.179..189b&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 179, Apr. 1977, p. 189-207.
Other
66
Coherent Radiation, Magnetohydrodynamic Stability, Pulsars, Radio Antennas, Radio Emission, Stellar Models, Atmospheric Models, Dense Plasmas, Electrostatic Waves, Magnetospheres, Phased Arrays, Plasma Waves, Power Spectra
Scientific paper
A general formalism for coherent curvature radiation is applied to radio emission from pulsars in the framework of the magnetospheric model of Ruderman and Sutherland (1975). It is found that the convective beam-plasma instability envisioned by that model cannot explain the coherent radiation and that the electrostatic two-stream instability dominates over all other plasma instabilities. An expression for the luminosity of radio pulsars is derived on the assumption that the beam-plasma mode grows from noise. This expression displays several features that must be shared by any reasonably simple instability-driven radiation and implies that the dense plasma rippled by the passing plasma wave behaves like a phased array. The results are compared with observations of various pulsars, and some observational consequences of the calculations are considered.
Benford Gregory
Buschauer Robert
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