918 citations · 19.7k across the 225 of their papers we have counts for
Showing 1994 · astro-phShow all
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astro-ph1994
On the Relationship between Optical and X-Ray Luminosity of Quasars
F. la Franca, A. Franceschini, S. Cristiani +1
The issue of the X-ray to optical luminosity relationship () is addressed for both optically and X-ray selected quasar samples. We have applied a generalized regression al…
astro-ph1994★ 3 cited
The Extragalactic IR Background
G. De Zotti, A. Franceschini, P. Mazzei +2
Current limits on the intensity of the extragalactic infrared background are consistent with the expected contribution from evolving galaxies. Depending on the behaviour of the sta…