Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978mnras.184..341d&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 184, Aug. 1978, p. 341-349.
Astronomy and Astrophysics
Astronomy
22
Astronomical Models, Galactic Radiation, Radio Galaxies, Spectrophotometry, Absorption Spectra, Ellipticity, Photoionization, Radio Astronomy, Spectral Line Width
Scientific paper
Spectrophotometric scans of the proposed galaxies associated with the radio sources PKS 0211-47 and PKS 0634-20 are discussed, and 1415-MHz radio observations of the two sources are reported. It is found that PKS 0211-47 fits well the upper end of the Hubble diagram for radio galaxies determined by Sandage (1972) and has the average visual brightness of the documented radio galaxies. The optical data are compared with reddening-corrected line strengths and continuum spectral indices for the narrow-line radio galaxies 3C 98, 3C 192, and 3C 327; close similarities are seen in almost all features. Emitting-region diameters of 43 pc for PKS 0634-20 and 33 pc for PKS 0211-47 are obtained along with respective masses of 700,000 and 300,000 solar masses. It is concluded that PKS 0634-20 is an elliptical galaxy with a visible blue compact object at its center and that the optical galaxy associated with PKS 0211-47 probably has some ellipticity.
Danziger Ivan John
Frater Robert H.
Goss William Miller
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