Continuum observations of six extragalactic radio sources at 1420 MHz

Details Continuum observations of six extragalactic radio sources at 1420 MHz Continuum observations of six extragalactic radio sources at 1420 MHz

Jan 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976aj.....81....1c&link_type=abstract

Astronomical Journal, vol. 81, Jan. 1976, p. 1-6.

Astronomy and Astrophysics

Astronomy

10

Continuous Spectra, Extragalactic Radio Sources, Galactic Radiation, Microwave Emission, Quasars, Halos, Radio Astronomy, Radio Galaxies, X Ray Astronomy

Scientific paper

Synthesis observations to 2-arcmin resolution of the 1420-MHz continuum emission from six extragalactic sources are described. Two of the sources are unresolved. 3C 66A, a QSO, is found to be 80% more intense than previously reported and may be variable; the other, OM 591, is tentatively identified with a stellar-type object. 3C 66B is shown to have extended structure very similar to that observed at 408 MHz. OM 588, the major component of 4C 55.22, itself comprises at least two extended components, one of which is coincident with a 16-mag galaxy. A map of the halo of 3C 274 (M87) is given, and its relation to the optical and X-ray halos is considered. A suspected halo surrounding 3C 103 was not detected at the 4% level.

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