A Complete Sample of Soft X-Ray-selected AGNs. I. The Data*

  title={A Complete Sample of Soft X-Ray-selected AGNs. I. The Data*},
  author={Dirk Grupe and Beverley J. Wills and Karen Marie Leighly and Helmut Meusinger},
  journal={The Astronomical Journal},
We present the optical spectra and simple statistical analysis for a complete sample of 110 soft X-ray?selected AGNs. About half of the sources are narrow-line Seyfert 1 galaxies (NLS1's), which have the steepest X-ray spectra, the strongest Fe II emission, and slightly weaker [O III] ?5007 emission than broad-line Seyfert 1's (BLS1's). Kolmogorov-Smirnov tests show that NLS1's and BLS1's have clearly different distributions of the X-ray spectral slope ?X, X-ray short-term variability, and Fe… 
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