Fig. 1 from X‐Ray Spectral Survey of WGACAT Quasars. I. Spectral Evolution and Low‐Energy Cutoffs

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X‐Ray Spectral Survey of WGACAT Quasars. I. Spectral Evolution and Low‐Energy Cutoffs

Authors: Fabrizio Fiore, Martin Elvis, Paolo Giommi, and Paolo Padovani

Fiore et al. 1998 The Astrophysical Journal 492 79.

Provider: AAS Journals

Caption: Fig. 1.

Distribution of X‐ray/optical offsets for our sources, obtained by cross‐correlating the WGACAT with various optical and radio catalogs with a correlation radius of 1^{﹩\arcmin﹩}. The mean offset is sime 18^{﹩\arcsec﹩}. The number of spurious associations is ≲2 (see text for details).

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