Laboratory study of coherent curvature radiation as a pulsar emission mechanism

Details Laboratory study of coherent curvature radiation as a pulsar emission mechanism Laboratory study of coherent curvature radiation as a pulsar emission mechanism

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ap%26ss..80..307b&link_type=abstract

Astrophysics and Space Science, vol. 80, no. 2, Dec. 1981, p. 307-321.

Astronomy and Astrophysics

Astrophysics

3

Coherent Radiation, Magnetohydrodynamic Stability, Plasma Waves, Plasma-Particle Interactions, Pulsars, Stellar Radiation, Beam Interactions, Curvature, Microwaves, Plasma Density, Relativistic Electron Beams

Scientific paper

Experiments using a relativistic electron beam propagating helically through a magnetized plasma are conducted to simulate major physical processes occurring in pulsars. Microwave radiation with wavelengths of about 1 cm emerge when predicted resonance conditions are satisfied, with power exceeding 1 MW, and radiation lasting as long as the electron beam pulse. The spectrum, harmonics, power, and scalings are consistent with a model of coherent curvature radiation from electrons bunched by a beam-plasma streaming instability, and polarization is that of single-particle emission, although some evidence exists for diffraction patterns due to the beam bunches themselves.

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