347 citations · 377 across the 2 of their papers we have counts for
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astro-ph2005
Probing the precession of the inner accretion disk in Cygnus X-1
Diego F. Torres, Gustavo E. Romero, Xavier Barcons +1
We show that changes in the orientation of the inner accretion disk of Cygnus X-1 affect the shape of the broad Fe K emission line emitted from this object, in such a way that e…
astro-ph2005
Evolution of accretion disks around massive black holes: constraints from the demography of active galactic nuclei
Qingjuan Yu, Youjun Lu, Guinevere Kauffmann
Observations have shown that the Eddington ratios (the ratio of the bolometric luminosity to the Eddington luminosity) in QSOs/active galactic nuclei (AGNs) cover a wide range. In…