82 citations · 160 across the 3 of their papers we have counts for
3 papers
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.HE2014★ 82 cited
Discovery of a ~2 hr high frequency X-ray QPO and iron K alpha reverberation in the active galaxy MS 2254.9-3712
W. N. Alston, M. L. Parker, J. Markeviciute +5
We report the discovery of a Hz ( hr) X-ray quasi-periodic oscillation (QPO) in the active galaxy MS 2254.9-3712, using a ks XMM-Newton…
astro-ph.HE2014★ 64 cited
Detection of a QPO in 5 XMM-Newton observations of RE J1034+396
W. N. Alston, J. Markevičiūtė, E. Kara +2
The X-ray quasi-periodic oscillation (QPO) at Hz in RE J1034+396 has been robustly observed in the 0.2-10 keV band of one ks XMM-Newton observat…