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Astron. Astrophys. 364, 443-449 (2000)

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Identification of a complete sample of northern ROSAT all-sky survey X-ray sources

VII. The AGN subsample

I. Appenzeller 1,4, F.-J. Zickgraf 2, J. Krautter 1 and W. Voges 3

1 Landessternwarte Heidelberg, Königstuhl, 69117 Heidelberg, Germany
2 Hamburger Sternwarte, Gojenbergsweg 112, 21029 Hamburg, Germany
3 Max-Planck-Institut für extraterrestrische Physik, Giessenbachstrasse, 85740 Garching, Germany
4 Max-Planck-Institut für Astronomie, Königstuhl, 69117 Heidelberg, Germany

Received 12 May 2000 / Accepted 21 September 2000


In order to derive statistical properties of a complete X-ray selected sample of AGN we used the classification spectra of the RASS Selected Areas-North survey to study the luminosities, redshifts, X-ray/visual flux ratios, line widths, and various correlations between observed parameters of all Seyfert galaxies and QSOs in this sample. On the basis of these data we discuss implications for the current AGN models.

Key words: galaxies: active – galaxies: Seyfert – galaxies: quasars: general – X-rays: galaxies

Send offprint requests to: I. Appenzeller

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© European Southern Observatory (ESO) 2000

Online publication: January 29, 2001