Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984aj.....89.1293b&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 89, Sept. 1984, p. 1293-1299.
Astronomy and Astrophysics
Astronomy
27
Active Galactic Nuclei, Astronomical Spectroscopy, Charge Coupled Devices, Cosmic Gases, Galactic Radiation, Hydrogen, Quasars, Seyfert Galaxies, Emission Spectra, Neutral Gases, Red Shift
Scientific paper
The authors present the results of a survey for H I emission from a sample of 14 low-redshift (z < 0.07) QSOs and active galactic nuclei. In addition, they have obtained high-quality CCD images for most of the sample objects. Six of the 14 objects in the sample have been detected in H I, with a bias toward detecting objects that exhibited nebulosity on the Palomar Sky Survey. The range in detected H I mass is similar to that seen in previous studies of Seyfert galaxies. In general, neither active galactic nuclei or low-redshift QSOs are immersed in host galaxies that are overabundant in H I with respect to normal spirals. Furthermore, the optical luminosities of the host galaxies are not large in comparison with normal spirals. The most significant result is the strong H I detection of the QSO/Seyfert I galaxy IZw1 at a velocity that is within 50 km s-1 of the optical redshift.
Balick Bruce
Bothun Gragory D.
Heckman Timothy M.
Schommer Robert A.
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