Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...326..125w&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 326, March 1, 1988, p. 125-145.
Astronomy and Astrophysics
Astrophysics
147
Galactic Structure, Oxygen, Radio Galaxies, Seyfert Galaxies, H Beta Line, Markarian Galaxies, Radio Emission
Scientific paper
High spatial and spectral resolution observations are presented for 10 Seyfert galaxies in the H-beta-forbidden O III 5007 A spectral region. In most of the objects, there is evidence for forbidden O III profile substructure, which appears to be most conspicuous close to the location of a radio lobe. The relative intensities of forbidden O III component emission and ambient forbidden O III emission vary greatly from object to object. A control sample shows little evidence for spatially resolved forbidden O III profile substructure. The forbidden O III components usually have high excitation. The component velocities can fall well outside the maximum galactic rotation amplitude and, in some cases, are opposite to the sense of rotation. This strongly suggests that the component gas does not rotate with the rest of the galactic gas but is instead undergoing systematic outflow.
Axon David J.
Meurs Evert J. A.
Pedlar Alan
Unger Stephen W.
Ward Martin J.
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