New bright soft X-ray selected ROSAT AGN II. Optical emission line properties

2); D. Grupe (1; Garching); Garching; (2) Uni-Sternwarte Goettingen; (3) MPI fuer Astrophysik; H.-C. Thomas (3) ((1) MPI fuer extraterrestrische Physik; K. Beuermann (1; K. Mannheim (2)

arxiv: astro-ph/9908347 · v1 · submitted 1999-08-31 · 🌌 astro-ph

New bright soft X-ray selected ROSAT AGN II. Optical emission line properties

D. Grupe (1 , 2) , K. Beuermann (1 , K. Mannheim (2) , H.-C. Thomas (3) ((1) MPI fuer extraterrestrische Physik , Garching; (2) Uni-Sternwarte Goettingen; (3) MPI fuer Astrophysik , Garching) This is my paper

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keywords opticallinesoftx-raybrightemissiongalaxieslines

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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.

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