Relativistic plasma turbulence and its application to pulsar phenomena

Details Relativistic plasma turbulence and its application to pulsar phenomena Relativistic plasma turbulence and its application to pulsar phenomena

May 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...206..282h&link_type=abstract

Astrophysical Journal, vol. 206, May 15, 1976, pt. 1, p. 282-294.

Other

18

Pair Production, Plasma Turbulence, Pulsars, Relativistic Plasmas, Astronomical Models, Collision Rates, Electron-Positron Plasmas, Flux Density, Magnetic Fields, Polar Caps, Trapped Particles, Wave Propagation

Scientific paper

A turbulent-plasma model of pulsars is analyzed which has the potential of providing a self-regulatory mechanism for producing an electron-positron plasma over the polar caps as well as the coherency of the radio-wave emission. Turbulent-plasma properties, including the kinetic and electrostatic energy densities, the wavelength of the most unstable mode, and the effective collision frequency due to the excited electric field, are obtained and applied to the pulsar situation. Since these properties depend on the momentum distribution of the plasma particles, model calculations have been carried out with simple momentum-distribution functions. The radio luminosity due to turbulence (bunching or otherwise) turned out to be either insufficient or unclear at the moment for these simple momentum distributions. This indicates that a further investigation of turbulence processes with the self-consistently determined momentum distribution is needed. Some wave-propagation properties in a relativistic electron-positron plasma immersed in a strong magnetic field are examined.

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