Meter wavelength structures, flux densities and accurate positions of weak radio sources

Details Meter wavelength structures, flux densities and accurate positions of weak radio sources Meter wavelength structures, flux densities and accurate positions of weak radio sources

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26as...80..215a&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 80, no. 2, Oct. 1989, p. 215-228.

Astronomy and Astrophysics

Astronomy

1

Centimeter Waves, Extragalactic Radio Sources, Lunar Occultation, Radio Sources (Astronomy), Flux Density, Position (Location), Radio Telescopes, Sky Surveys (Astronomy), Very Large Array (Vla)

Scientific paper

The results of lunar occultation observations of 106 radio sources within declination + or - 19 deg at 327 MHz are presented, including flux densities, accurate radio positions and angular structure information. Optical identifications on the basis of the radio positions and angular structures show that 15 percent are positively identified. Flux densities of 74 sources in the list have been measured at 21 and 18 cm, and their spectral indices derived. Most of the sources have steep radio spectra, and a comparison with previous results at high frequencies indicates that there is no difference between the high frequency and low frequency radio spectra of weak radio sources.

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