CCD spectroscopy of the active galaxies NGC 5506 and NGC 7314

Details CCD spectroscopy of the active galaxies NGC 5506 and NGC 7314 CCD spectroscopy of the active galaxies NGC 5506 and NGC 7314

Jul 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mnras.215p..57m&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 215, July 15, 1985, p. 57P-61P. SERC-supported research

Astronomy and Astrophysics

Astronomy

23

Active Galaxies, Galactic Nuclei, Infrared Spectra, Interstellar Gas, Oxygen Spectra, Seyfert Galaxies, X Ray Sources, Charge Coupled Devices, Fluorescence, Optical Thickness, Spectrophotometry

Scientific paper

The authors present spectrophotometry of the active galaxies NGC 5506 and 7314, covering the wavelength region 5300 Å to 1 μm. An emission line present in both objects is identified as O I λ8446, excited by a Bowen fluorescence mechanism. This line is strong evidence for the existence of high-density optically thick gas in these two narrow-line X-ray-emitting galaxies. A strong red emission feature, also seen in a number of Seyfert 1 galaxies, whose origin is at present uncertain is also described.

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