The plasma near the sun sounded by Venera 15 radio signals - A VLBI experiment

Details The plasma near the sun sounded by Venera 15 radio signals - A VLBI experiment The plasma near the sun sounded by Venera 15 radio signals - A VLBI experiment

Jun 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986pazh...12..486a&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 12, June 1986, p. 486-492) Soviet Astronomy Letters (ISSN 0360-0327), vol. 12, May-June

Computer Science

Sound

2

Cosmic Plasma, Radio Astronomy, Satellite Sounding, Solar Neighborhood, Venera Satellites, Very Long Base Interferometry, Gratings (Spectra), Line Spectra, Plasma Diagnostics, Spectrum Analysis

Scientific paper

In a June 1984 VLBI experiment, the turbulent plasma near the sun was sounded by signals of about 30-cm wavelength transmitted from the Venera 15 spacecraft, received by 70-, 25-m antennas in the Crimea and near Moscow, and analyzed by the Gor'kii processor. The signal source was 3 deg 10 arcmin away from the sun. Analogous to spectral lines, the interference fringes have an average profile and halfwidth that convey information on the turbulent medium. In a 20-min interval the profile broadened from 7.9 to 9.5 Hz. The VLBI technique is a promising one for diagnosis of the circumsolar plasma.

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