Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aj....104.1311h&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 104, no. 4, p. 1311-1319.
Astronomy and Astrophysics
Astronomy
10
Emission Spectra, Extragalactic Radio Sources, Quasars, Radio Astronomy, Line Spectra, Red Shift
Scientific paper
Images have been obtained in R band and redshifted 100A band O II forbidden line with the High Resolution Camera of the Canada-France-Hawaii Telescope. Ten quasi-stellar objects were observed, with redshifts from 0.36 to 0.91, with radio structures ranging from unresolved to large double-lobed. The images have a mean full width at half maximum 0.64 arcsec, and a spread from 0.45 to 0.80. Extended emission line structure is seen in all cases, with a variety of properties. In particular, in four of the six large radio sources, the emission line gas appears to be associated with the radio structure. However, the connection between radio and emission lines structure is not as marked as in radio galaxies, and no large emission line regions are seen. The continuum images are resolved in six of the nine cases, four of which are at redshifts larger than 0.8. The evolution of the sources is discussed.
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