Looking into Pulsar Magnetospheres

Details Looking into Pulsar Magnetospheres Looking into Pulsar Magnetospheres

2000-07-25

arxiv.org/abs/astro-ph/0007373v1

Astrophys.Space Sci. 278 (2001) 81-84

Astronomy and Astrophysics

Astrophysics

4 pages. To appear in "Sources and Scintillations: Refraction and Scattering in Radio Astronomy", IAU Colloquium 182, Guiyang,

Scientific paper

10.1023/A:1013139403705

Diffractive and refractive magnetospheric scintillations may allow a direct testing of the plasma inside the light cylinder. Unusual electrodynamics of the strongly magnetized electron-positron plasma allow separation of the magnetospheric and interstellar scattering. The most distinctive feature of the magnetospheric scintillations is their independence on frequency. Diffractive scattering due to small scale inhomogeneities produce a scattering angle that may be as large as 0.1 radians, and a typical decorrelation time of $10^{-8}$ seconds. Refractive scattering due to large scale inhomogeneities is also possible, with a typical angle of $10^{-3}$ radians and a correlation time of the order of $10^{-4}$ seconds. Some of the magnetospheric propagation effects may have already been observed.

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