Interplanetary scintillations of PSR 0531 + 21 at 74 MHz

Details Interplanetary scintillations of PSR 0531 + 21 at 74 MHz Interplanetary scintillations of PSR 0531 + 21 at 74 MHz

Feb 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...220..346a&link_type=abstract

Astrophysical Journal, Part 1, vol. 220, Feb. 15, 1978, p. 346-352.

Astronomy and Astrophysics

Astronomy

21

Crab Nebula, Interplanetary Medium, Pulsars, Scintillation, Very Long Base Interferometry, Brightness, Point Sources, Radiant Flux Density, Radio Sources (Astronomy), Secular Variations

Scientific paper

The flux density of the 74-MHz compact source in the Crab Nebula is estimated from interplanetary scintillation observations. The result removes the earlier disagreement with very-long-baseline interferometry determinations. It also shows a 45% secular decrease in the flux from 1971.4 to 1975.4, in good agreement with observations of the 74-MHz pulsing flux. The differences between this analysis and the method which had been used to date are described. A procedure for the reinterpretation of other meter-wavelength scintillation observations is discussed.

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