Radio-interferometric observations using antennas in the Eastern Hemisphere

Details Radio-interferometric observations using antennas in the Eastern Hemisphere Radio-interferometric observations using antennas in the Eastern Hemisphere

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992sval...18..362m&link_type=abstract

Soviet Astronomy Letters, Vol. 18, p. 362; Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 18, no. 10, p. 891-900. In

Astronomy and Astrophysics

Astronomy

1

Radio Antennas, Radio Astronomy, Radio Interferometers, Space Observations (From Earth), Very Long Base Interferometry, Angular Resolution, Geocentric Coordinates, Interstellar Masers, Radio Sources (Astronomy), Radio Telescopes

Scientific paper

Data obtained through radio-interferometric observations using antennas in the Eastern Hemisphere along with antennas of the European VLBI network (which includes Ussuriisk, Bear Lakes, and Evpatoria) are presented. Radio-interferometers operated with a fluctuation sensitivity of 4 mJy. The geocentric coordinates of the Soviet antennas were measured with an accuracy of several meters. A maximum angular resolution of 5 mas was limited by interstellar scattering for maser sources. The major part of the W51 maser emission was concentrated in a 50 mas region. Major maser components are characterized by LSR velocities within a 58.0-59.5 km/s range, a flux density of 40-80 Jy, and a spectral width of 0.37-0.50 km/s (FWHM).

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