140 citations · 507 across the 8 of their papers we have counts for
Showing 2009Show all
3 papers · 1 filter
astro-ph.HE2009★ 92 cited
The X-ray Energy Dependence of the Relation between Optical and X-ray Emission in Quasars
M. Young, M. Elvis, G. Risaliti
We develop a new approach to the well-studied anti-correlation between the optical-to-X-ray spectral index, alpha_ox, and the monochromatic optical luminosity, l_opt. By cross-corr…
astro-ph.CO2009★ 140 cited
The SDSS/XMM-Newton Quasar Survey: Correlation between X-ray spectral slope and Eddington ratio
G. Risaliti, M. Young, M. Elvis
We present a correlation between the 2-10 keV spectral slope Gamma and the Eddington ratio L/L_{EDD} in a sample of ~400 Sloan Digital Sky Survey quasars with available hard X-ray…
astro-ph.HE2009★ 97 cited
The Fifth Data Release Sloan Digital Sky Survey/XMM-Newton Quasar Survey
M. Young, M. Elvis, G. Risaliti
We present a catalog of 792 DR5 SDSS quasars with optical spectra that have been observed serendipitously in the X-rays with the \emph{XMM-Newton}. These quasars cover a redshift r…