Coherent Curvature Radiation by Langmuir Solitons in the Pulsar Magnetosphere

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Scientific paper

The non-linear evolution of electrostatic waves results in formation of `bunch-like' charged solitons in the electron-positron plasma of pulsar magnetosphere. A characteristic soliton length along magnetic field lines is about 30 cm, so they are capable of emitting coherent curvature radiation at radio wavelengths. One soliton moving relativisticaly along dipolar field lines with a Lorentz factor of the order of 100 generates a power of about 1021 erg/s by means of curvature radiation. The estimated power emitted by all solitons is in a good agreement with observed pulsar luminosities.

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