Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989aj.....98.2056w&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 98, Dec. 1989, p. 2056-2061.
Astronomy and Astrophysics
Astronomy
16
Emission Spectra, Radio Emission, Radio Sources (Astronomy), Seyfert Galaxies, Astronomical Spectroscopy, Line Spectra, Spectral Line Width, Velocity Distribution
Scientific paper
Direct imaging and long-slit spectroscopic mapping of the emission-line gas in the Seyfert 2 galaxy 0714 - 2914 (M4-1, MCG - 5-18-2) are reported. The nuclear regions contain an extended (1 kpc size), high-excitation nebulosity that is well aligned with the jet-like nonthermal radio source. The profiles of Forbidden O III 5007A are asymmetric, with extended red wings to the north and west of the nucleus and extended blue wings to the south and east. This switch in the sense of asymmetry is accounted for in terms of a combination of normal rotational motions in the galaxy disk and high-velocity outflow or infall associated with the Seyfert activity.
Baldwin John A.
Wilson Andrew S.
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