715 citations · 3.7k across the 78 of their papers we have counts for
8 papers · 1 filter
ASTRO-H White Paper - AGN Reflection
C. Reynolds, Y. Ueda, H. Awaki +9
X-ray observations provide a powerful tool to probe the central engines of active galactic nuclei (AGN). A hard X-ray continuum is produced from deep within the accretion flow onto…
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…
NuSTAR Reveals the Comptonizing Corona of the Broad-Line Radio Galaxy 3C 382
D. R. Ballantyne, J. M. Bollenbacher, L. W. Brenneman +14
Broad-line radio galaxies (BLRGs) are active galactic nuclei that produce powerful, large-scale radio jets, but appear as Seyfert 1 galaxies in their optical spectra. In the X-ray…
The X-ray spectrum of the cooling-flow quasar H1821+643 : A massive black hole feeding off the intracluster medium
Christopher S. Reynolds, Anne M. Lohfink, Arif Babul +4
We present a deep Suzaku observation of H1821+643, an extremely rare example of a powerful quasar hosted by the central massive galaxy of a rich cooling-core cluster of galaxies. I…
Observations of MCG-5-23-16 with Suzaku, XMM-Newton and NuSTAR: Disk tomography and Compton hump reverberation
A. Zoghbi, E. M. Cackett, C. Reynolds +12
MCG-5-23-16 is one of the first AGN where relativistic reverberation in the iron K line originating in the vicinity of the supermassive black hole was found, based on a short XMM-N…
The fast UV variability of the active galactic nucleus in Fairall 9
Anne Lohfink, Christopher Reynolds, Ranjan Vasudevan +2
We present results from a new optical/UV/X-ray monitoring campaign of the luminous Seyfert galaxy Fairall 9 using the Swift satellite. Using the UV-Optical Telescope (UVOT) on Swif…
The hard X-ray perspective on the soft X-ray excess
Ranjan V. Vasudevan, Richard F. Mushotzky, Christopher S. Reynolds +5
The X-ray spectra of many active galactic nuclei (AGN) exhibit a `soft excess' below 1keV, whose physical origin remains unclear. Diverse models have been suggested to account for…
The soft X-ray emission of Ark 120. XMM-Newton, NuSTAR, and the importance of taking the broad view
G. Matt, A. Marinucci, M. Guainazzi +17
We present simultaneous XMM-Newton and NuSTAR observations of the `bare' Seyfert 1 galaxy, Ark 120, a system in which ionized absorption is absent. The NuSTAR hard X-ray spectral c…