Computer Science
Scientific paper
Oct 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999ycat..33500805g&link_type=abstract
VizieR On-line Data Catalog: J/A+A/350/805. Originally published in: 1999A&A...350..805G
Computer Science
Active Gal. Nuclei, Qsos, Spectroscopy
Scientific paper
We present the emission line properties of a sample of 76 bright soft X-ray selected ROSAT Active Galactic Nuclei. All optical counterparts are Seyfert 1 galaxies with rather narrow permitted lines, strong optical FeII line blends, and weak forbidden lines. By selection, they also have steep soft X-ray spectra when compared with typical Seyfert 1 galaxies. We discuss possible origins of these peculiar trends employing detailed correlation analyses, including a Principal Component Analysis. The optical spectra are presented in the Appendix. (1 data file).
Beuermann Klaus
Grupe Dirk
Mannheim Karl
Thomas Hans-Christoph
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