Absorption of curvature radiation

Details Absorption of curvature radiation Absorption of curvature radiation

Mar 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979aujph..32...49z&link_type=abstract

(Joint Australia-USSR-USA Symposium on Pulsars and Supernova Remnants, Sydney, Australia, Apr. 1978.) Australian Journal of Phys

Physics

20

High Energy Electrons, Pulsars, Radiation Absorption, Relativistic Particles, Stellar Magnetic Fields, Stellar Radiation, Curvature, Lines Of Force, Masers, Optical Thickness, Radiation Distribution, Radio Emission

Scientific paper

The reabsorption of curvature radiation, i.e., radiation from relativistic electrons moving along curved magnetic field lines, is discussed. The optical depth for the ray path is calculated by use of the Einstein coefficients. It is shown that the optical depth becomes negative (maser effect) if transitions between Landau levels are absent. However, maser action is ineffective if the energy density of the relativistic particles is less than that of the magnetic field. For pulsar radio emission the magnetic energy density is assumed to exceed the particle energy density, so the observed emission cannot be coherent curvature radiation.

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