On the nature of the so-called narrow-line X-ray galaxies

Details On the nature of the so-called narrow-line X-ray galaxies On the nature of the so-called narrow-line X-ray galaxies

Jul 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....87..245v&link_type=abstract

Astronomy and Astrophysics, vol. 87, no. 1-2, July 1980, p. 245-249.

Astronomy and Astrophysics

Astrophysics

113

Astronomical Spectroscopy, Galactic Nuclei, Seyfert Galaxies, X Ray Sources, Astronomical Photometry, H Alpha Line, Spectral Line Width, Telescopes, Ubv Spectra

Scientific paper

Six X-ray emitting galaxies are known which are called narrow-emission line galaxies. Spectroscopic and photographic observations show that two of them (NGC 1365 and NGC 2992) have both a star-like nucleus and a broad H alpha component; NGC 5506 has a star-like nucleus, but a broad H alpha component was not detected; A0945-30 has no visible star-like nucleus but possibly shows a broad H alpha component; NGC 2110, an elliptical galaxy, has no visible star-like nucleus and was not observed spectroscopically; NGC 7582 was not observed at all. The observations suggest that all these galaxies could have a Seyfert 1 nucleus partially hidden behind a dark absorbing cloud.

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