Pulsar scintillations and the parameters of interstellar plasma irregularities

Details Pulsar scintillations and the parameters of interstellar plasma irregularities Pulsar scintillations and the parameters of interstellar plasma irregularities

Dec 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980azh....57.1187p&link_type=abstract

(Astronomicheskii Zhurnal, vol. 57, Nov.-Dec. 1980, p. 1187-1196.) Soviet Astronomy, vol. 24, Nov.-Dec. 1980, p. 685-690. Trans

Astronomy and Astrophysics

Astronomy

17

Decimeter Waves, Electron Density (Concentration), Interstellar Matter, Pulsars, Scintillation, Space Plasmas, Quasars, Radio Scattering, Turbulence

Scientific paper

Interstellar plasma irregularities have two distinct characteristic scales: alpha-0 = 3 x 10 to the 10th cm and alpha-1 = 3 x 10 to the 13th cm. The alpha-0 irregularities are responsible for the primary effect of pulsar scintillation at decimeter wavelengths, while those of scale alpha-1 are responsible for the long-term intensity variations of both pulsars and quasars in a narrow wavelength band near lambda = 1 m. Electron density fluctuations of scale alpha-0 have an rms amplitude equal to 0.07% of the mean electron density; electron density fluctuations of scale alpha-1 have an rms amplitude approximately equal to the mean electron density itself.

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