Ultrarelativistic low-frequency electromagnetic waves in pulsar magnetospheres

Details Ultrarelativistic low-frequency electromagnetic waves in pulsar magnetospheres Ultrarelativistic low-frequency electromagnetic waves in pulsar magnetospheres

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990esasp.311..245t&link_type=abstract

In ESA, Plasma Astrophysics p 245-249 (SEE N91-15046 06-90)

Astronomy and Astrophysics

Astrophysics

Amplitude Modulation, Electromagnetic Radiation, Plasma Waves, Pulsar Magnetospheres, Pulsars, Relativistic Velocity, Wave Propagation, Galactic Nuclei, Low Frequencies, Magnetohydrodynamic Stability, Nonlinearity, Pulse Amplitude, Space Plasmas, Stellar Rotation

Scientific paper

Nonlinear propagation of strong low frequency waves, as emitted by pulsar or compact galactic nuclei at their rotation frequencies, in a magnetized plasma is investigated. It is shown that even rather small amplitude waves (resonance effects) which can drive electrons are ultrarelativistic but the ions are immobile, two new types of circularly polarized waves are excited. These new waves are specific in that the frequencies are strongly dependent upon the amplitude. Results on the investigation of the damping of these waves are given.

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