246 citations · 2.5k across the 59 of their papers we have counts for
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astro-ph.HE2015★ 14 cited
Quasi periodic oscillations in active galactic nuclei
William Alston, Andy Fabian, Julija Markeviciute +3
Quasi-periodic oscillations (QPOs) are coherent peaks of variability power observed in the X-ray power spectra (PSDs) of stellar mass X-ray binaries (XRBs). A scale invariance of t…
astro-ph.HE2015★ 141 cited
NuSTAR and Suzaku observations of the hard state in Cygnus X-1: locating the inner accretion disk
M. L. Parker, J. A. Tomsick, J. M. Miller +20
We present simultaneous Nuclear Spectroscopic Telescope Array (NuSTAR ) and Suzaku observations of the X-ray binary Cygnus X-1 in the hard state. This is the first time this state…