Curvature maser emission due to field line torsion in pulsar magnetospheres

Details Curvature maser emission due to field line torsion in pulsar magnetospheres Curvature maser emission due to field line torsion in pulsar magnetospheres

Sep 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995mnras.276..372l&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 276, Issue 2, pp. 372-382.

Astronomy and Astrophysics

Astronomy

23

Masers, Plasmas, Radiation Mechanisms: Nonthermal, Stars: Magnetic Fields, Pulsars: General

Scientific paper

Field line geometric effects on curvature emission and absorption are explored in detail. In particular, we consider field line distortion near the star's surface due to a quadrupolar component, with the field line geometry approximated by a local helix. The spectral power for a particle moving along the field line is derived from the familiar synchrotron formula, and the absorption coefficient is derived by appealing to the Einstein coefficients. Field line torsion can result in wave amplification, with the maser emission occurring very nearly along the field lines. The maser emission can be saturated by quasi-linear diffusion. The application of such maser emission to pulsar radio emission is discussed.

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