Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978pazh....4..140s&link_type=abstract
(Pis'ma v Astronomicheskii Zhurnal, vol. 4, Mar. 1978, p. 140-142.) Soviet Astronomy Letters, vol. 4, Mar.-Apr. 1978, p. 74-76.
Astronomy and Astrophysics
Astronomy
1
Diffraction Patterns, Hydroxyl Emission, Scintillation, Solar Wind Velocity, Velocity Measurement, Water Masers, Flux Density, Frequency Shift, H Lines, Interplanetary Medium, Radio Astronomy
Scientific paper
A method is proposed for estimating the velocity of the solar wind close to the sun (within 1 to 30 solar radii) from measurements with a single radio telescope of the relative shift in the diffraction pattern of interplanetary scintillations for several separate components of individual H2O and OH maser sources. A phase-screen analysis is performed, and characteristic delay times for the scintillation pattern of two sources are estimated. The optimum range of elongation is determined to be 2 to 5 solar radii for observations at 1.35 cm and 5 to 20 solar radii for observations at 18 cm. Some experimental opportunities for determining the solar-wind velocity from H2O maser sources are considered.
Shishov V. I.
Sorochenko Roman Leonidovich
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