Pulsars - Polar pumps, interpolar currents, and induced Landau radiation

Astronomy and Astrophysics – Astrophysics

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Atmospheric Models, Magnetic Pumping, Particle Acceleration, Pulsars, Stellar Atmospheres, Synchrotron Radiation, Energy Dissipation, Hydrodynamics, Landau Factor, Magnetic Poles, Stellar Magnetic Fields, Stellar Models, Stellar Rotation

Scientific paper

Three dynamical effects are discussed which permit the formulation of a self-consistent theory of pulsar atmospheres in the case of aligned magnetic and rotational axes. The physical processes that generate the polarization of a rotating magnetized sphere with an insulating cover are reviewed, and long-time consequences of the underlying pumping action generated by the resistivity of the star are considered. A radiative dissipative mechanism is described, which is induced by the nonrelativistic poloidal drift of particles through regions with variable values of poloidal drift. The dynamical features are combined with existing force-free models to develop a reasonable qualitative picture for aligned pulsar atmospheres.

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