Extended optical-line-emitting gas in radio galaxies - Broad-band optical, narrow-band optical, and radio imaging of a representative sample

Details Extended optical-line-emitting gas in radio galaxies - Broad-band optical, narrow-band optical, and radio imaging of a representative sample Extended optical-line-emitting gas in radio galaxies - Broad-band optical, narrow-band optical, and radio imaging of a representative sample

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apjs...68..643b&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 68, Dec. 1988, p. 643-714.

Mathematics

Logic

258

Active Galaxies, Broadband, Galactic Structure, Interstellar Gas, Narrowband, Radio Galaxies, Emission Spectra, H Alpha Line, Ionizing Radiation, Line Spectra, Red Shift, Very Large Array (Vla)

Scientific paper

A search for extended optical-line-emitting gas in a representative sample of power radio galaxies has been conducted in order to determine the frequency with which such gas is found in these galaxies and to assess the relationship of the gas to the radio source structure and the structure of the host galaxy. Contour maps and detailed descriptions are given for each source of the broad-band optical, narrow-band optical, and radio images obtained. From the images presented here, it is clear that extended optical-line-emitting is common in powerful radio galaxies. In some cases, the emission-line filaments appear to connect the host radio galaxy to an apparent companion galaxy. S-shaped regions of line emission are observed in five of the sources. Morphological peculiarities in the distribution of the optical continuum light from the host radio galaxy are also apparent in many of these sources.

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