On two-stream instability in pulsar magnetospheres

Details On two-stream instability in pulsar magnetospheres On two-stream instability in pulsar magnetospheres

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...320..333u&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 320, Sept. 1, 1987, p. 333-335.

Astronomy and Astrophysics

Astrophysics

59

Magnetohydrodynamic Flow, Magnetohydrodynamic Stability, Pulsar Magnetospheres, Pulsars, Stellar Atmospheres, Electron Plasma, Electron-Positron Plasmas, Magnetic Field Configurations, Pair Production

Scientific paper

If the electron-positron plasma flow from the pulsar environment is stationary, the two-stream instability does not have enough time to develop in the pulsar magnetosphere. In that case the outflowing electron-positron plasma gathers into separate clouds. The clouds move along magnetic field lines and disperse as they go farther from the pulsar. At a distance of about 10 to the 8th cm from the pulsar surface, the high-energy particles of a given cloud catch up with the low-energy particles that belong to the cloud going ahead of it. In this region of a pulsar magnetosphere, the energy distribution of plasma particles is two-humped, and a two-stream instability may develop. The growth rate of the instability is quite sufficient for its development.

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