Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992sval...18..392s&link_type=abstract
Soviet Astronomy Letters, Vol. 18, p. 392; Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 18, no. 11, p. 959-974. In
Astronomy and Astrophysics
Astronomy
4
Interstellar Matter, Phase Shift, Pulsars, Scintillation, Stellar Magnetospheres, Cross Correlation, High Frequencies, Stellar Models
Scientific paper
The characteristic time scales and frequency scintillation structure are obtained from observations of four strong pulsars - PSR 0823+26, 0834+06, 1133+16, and 1919+21 at frequency 102.7 MHz. It is shown that internal narrowband spectrum variations with t less than P1 are small. These phase curves were obtained for pulsars from a correlation analysis of interstellar scintillations of the longitude-separated emission region. The space separation between sources rho = (1-2) x 10 exp 8 cm was obtained from the shifts of the time cross-correlation function of intensity variations at separated longitudes. It is shown that the phase curves are inconsistent with the dipole model of the magnetosphere.
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