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

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dc.creatorGrupe, D.
dc.creatorBeuermann, K.
dc.creatorMannheim, K.
dc.creatorThomas, H. -C.
dc.date1999-08-31
dc.date.accessioned2026-07-07T02:32:57Z
dc.date.available2026-07-07T02:32:57Z
dc.descriptionWe 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.
dc.description13 pages, 5 figures, the paper included all spectra is available at http://www.xray.mpe.mpg.de/~dgrupe/research/refereed.html
dc.identifierhttps://arxiv.org/abs/astro-ph/9908347
dc.identifierhttp://arxiv.org/abs/astro-ph/9908347
dc.identifierAstron.Astrophys. 350 (1999) 805-815
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/14658
dc.subjectAstrophysics
dc.titleNew bright soft X-ray selected ROSAT AGN II. Optical emission line properties
dc.typetext

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