On the possibility of existence of large amplitude waves around pulsars

Details On the possibility of existence of large amplitude waves around pulsars On the possibility of existence of large amplitude waves around pulsars

Nov 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981plap.rept..309a&link_type=abstract

In ESA Plasma Astrophys. p 309-312 (SEE N82-20030 10-88)

Astronomy and Astrophysics

Astrophysics

1

Amplitudes, Landau Damping, Neutron Stars, Plasma Waves, Pulsars, Wave Dispersion, Wave Propagation, Weibel Instability, Linear Polarization, Particle Acceleration, Pulsar Magnetospheres, Radiative Transfer

Scientific paper

Possible acceleration of particles is related to the properties of propagation and stability of large amplitude waves. Radiative damping effects compete with Weibel instability to prevent the propagation of large amplitude, low frequency, linearly polarized plasma waves. These inhibition phenomena are important for understanding the eventual acceleration of particles in the strong waves emitted by pulsars beyond the light cylinder distance. Due to the electric field induced by the rotation of a star, electromagnetic forces in the direction of the magnetic field lines dominate gravitational ones. Charged particles cannot remain bounded to the neutron star surface; they form a plasma which flows along closed and open magnetic field lines, fills the pulsar magnetosphere, and reaches regions beyond the light cylinder. The large amplitude radiated wave propagates through this plasma. Realistic models have to include simultaneously the electromagnetic wave emission and the relativistic plasma outflow.

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