Morphology of extended emission-line regions associated with radio galaxies

Details Morphology of extended emission-line regions associated with radio galaxies Morphology of extended emission-line regions associated with radio galaxies

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26as...71..465h&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 71, no. 3, Dec. 1987, p. 465-491. Research supported by the

Astronomy and Astrophysics

Astronomy

30

Emission Spectra, Galactic Structure, Radio Galaxies, Radio Jets (Astronomy), Active Galactic Nuclei, Charge Coupled Devices, Forbidden Transitions, Interstellar Matter, Visible Spectrum

Scientific paper

Narrow-band CCD observations have been obtained for 9 galaxies associated with radio sources, and calibrated images of extended ionized gas in the lines of forbidden O III and H-alpha + forbidden N II have been derived. For six of the objects the clouds are distributed along a Z-like pattern. Further, a bridge of emission from PKS0349-27 to a neighbor 1.2 arcmin toward west is found, suggesting a tidal encounter. For some of the objects the interaction between the ionized gas and jets of radio plasma is supposed to be important for the excitation and dynamics of the gas. However, in most cases the available radio data show no relation to the gas distribution.

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