Pulsar radio and visible radiation due to the modulation instability of high-frequence transverse waves in the inhomogeneous electron-positron plasma

Details Pulsar radio and visible radiation due to the modulation instability of high-frequence transverse waves in the inhomogeneous electron-positron plasma Pulsar radio and visible radiation due to the modulation instability of high-frequence transverse waves in the inhomogeneous electron-positron plasma

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989plap.work..303p&link_type=abstract

In ESA, Proceedings of an International School and Workshop on Plasma Astrophysics, Volume 1 p 303-307 (SEE N89-24910 18-75)

Astronomy and Astrophysics

Astrophysics

Electron Plasma, Magnetohydrodynamic Stability, Pulsars, Space Plasmas, Stellar Radiation, Circular Polarization, Light (Visible Radiation), Plasma Frequencies, Plasma Waves, Radio Emission, Wave Propagation

Scientific paper

Propagation of nonlinear transverse circularly polarized waves with characteristic frequency higher than the plasma frequency along the magnetic field in an electron-positron plasma was investigated. A modulation instability with great growth rate takes plase causing an excitation of Langmuir wave and formation of a charged bunch within the pulsar light cylinder in the region with open magnetic field lines. Propagation of a nonlinear Langmuir wave with a small angle in the magnetic field in the inhomogeneous electron-positron plasma was studied, revealing linear excitation of Alfven waves with frequency in the visible range. With the help of this transverse wave a frequency profile of intensity of the pulsar visible radiation is calculated.

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