Self-modulational formation of pulsar microstructures

Details Self-modulational formation of pulsar microstructures Self-modulational formation of pulsar microstructures

Nov 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983ap%26ss..97....9c&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 97, no. 1, Nov. 1983, p. 9-18. Research supported by the Conselho Nacional

Astronomy and Astrophysics

Astrophysics

86

Pulsars, Radio Emission, Space Plasmas, Electromagnetic Wave Transmission, Electron-Positron Plasmas, Schroedinger Equation, Stellar Magnetic Fields

Scientific paper

A nonlinear plasma theory for self-modulation of pulsar radio pulses is discussed. A nonlinear Schroedinger equation is derived for strong electromagnetic waves propagating in an electron-positron plasma. The nonlinearities arising from wave-intensity-induced particle-mass variation may excite the modulational instability of circularly and linearly polarized pulsar radiation. The resulting wave envelopes can take the form of periodic wave trains or solitons. These nonlinear stationary waveforms may account for the formation of pulsar microstructures.

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