Westerbork observations of flat spectrum galaxies in the 5 GHz 'S4' survey

Details Westerbork observations of flat spectrum galaxies in the 5 GHz 'S4' survey Westerbork observations of flat spectrum galaxies in the 5 GHz 'S4' survey

Apr 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979a%26a....74l..11k&link_type=abstract

Astronomy and Astrophysics, vol. 74, no. 2, Apr. 1979, p. L11-L14.

Astronomy and Astrophysics

Astronomy

26

Galactic Radiation, Radio Astronomy, Radio Galaxies, Radio Spectra, Bl Lacertae Objects, Galactic Nuclei, Galactic Structure, Microwave Spectra

Scientific paper

Observations made with the Westerbork Synthesis Radio Telescope at 6 cm and 21 cm are reported for a complete sample of sources from the NRAO-Bonn 'S4' survey at 5 GHz that have flat high frequency spectra and are identified with galaxies. Most of the brighter galaxies in the survey appear to be related to BL Lac objects. The BL Lac galaxy 1101 + 38 has been found to have an extended radio component of about 3 arcmin associated with it. An extended component located only on one side of the nucleus has been found in the case of 0309 + 41, which is identified with an 18m galaxy.

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