Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...235..576c&link_type=abstract
Astrophysical Journal, Part 1, vol. 235, Jan. 15, 1980, p. 576-586. NSF-supported research.
Astronomy and Astrophysics
Astrophysics
166
Astrophysics, Particle Acceleration, Polarized Radiation, Pulsars, Radio Emission, Brightness Temperature, Electron-Positron Pairs, Pair Production
Scientific paper
An improved model is proposed for polar cap current flow, electron-positron production, and subsequent growth of a two-stream bunching instability. The major differences from previous models derive from a more detailed analysis of charge outflow from neutron star polar caps, which indicates that at the polar caps, both ion and electron-positron pairs must be considered in describing the potential drops associated with current flow, the strength of the resulting electron-positron discharge, and the subsequent interaction of the ion beam and the relativistic pair plasma.
Cheng Andrew F.
Ruderman Malvin A.
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