Spectra of some variable radio sources from observations with RATAN-600

Details Spectra of some variable radio sources from observations with RATAN-600 Spectra of some variable radio sources from observations with RATAN-600

Feb 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978afz....14...91m&link_type=abstract

Astrofizika, vol. 14, Feb. 1978, p. 91-98. In Russian.

Astronomy and Astrophysics

Astronomy

8

Instrument Errors, Radio Sources (Astronomy), Radio Telescopes, Very Long Base Interferometry, Calibrating, Error Analysis, Flux Density, Noise Generators, Noise Temperature, Parametric Amplifiers, Root-Mean-Square Errors, Tables (Data)

Scientific paper

Spectra of six variable extragalactic radio sources at epoch 1976.25 and of these plus 12 additional sources at epoch 1976.75 have been obtained from observations with the RATAN-600 radio telescope at wavelengths of 2.08, 3.9, 6.52, and 13.0. Calibration of the antenna and the rms error in single-observation flux-density determination are discussed. Flux-density spectra are plotted, observations of the galaxy Markarian 509 are examined, and the angular diameters of the compact radio components in the quasars PKS 2134+004 and 3C 279 are computed. The possibility is considered of using the spectra obtained to aid in selecting optimum baselines for VLBI observations.

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