90 citations · 931 across the 88 of their papers we have counts for
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The Novel Obscured State of Stellar-mass Black Hole GRS 1915+105
Mayura Balakrishnan, J. M. Miller, M. T. Reynolds +3
GRS 1915105 is a stellar-mass black hole that is well known for exhibiting at least 12 distinct classes of X-ray variability and correlated multi-wavelength behavior. Despite su…
UV/optical disk thermal reverberation in AGN: an in-depth study with an analytic prescription for the time-lag spectra
E. S. Kammoun, M. Dovciak, I. E. Papadakis +2
Several active galactic nuclei show correlated variations in the ultraviolet/optical range, with time delays increasing at longer wavelengths. Thermal reprocessing of the X-rays il…
Multiwavelength power-spectrum analysis of NGC 5548
Christos Panagiotou, Iossif Papadakis, Elias Kammoun +1
NGC 5548 was recently monitored intensively from NIR to X-rays as part of the STORM campaign. Its disc emission was found to lag behind the observed X-rays, while the measured time…
A hard look at local, optically-selected, obscured Seyfert galaxies
E. S. Kammoun, J. M. Miller, M. Koss +11
We study the X-ray spectra of a sample of 19 obscured, optically-selected Seyfert galaxies (Sy 1.8, 1.9 and 2) in the local universe (~Mpc), drawn from the CfA Seyfert…
An Obscured, Seyfert-2-like State of the Stellar-mass Black Hole GRS 1915+105 Caused by Failed Disk Winds
J. M. Miller, A. Zoghbi, J. Raymond +13
We report on Chandra gratings spectra of the stellar-mass black hole GRS 1915+105 obtained during a novel, highly obscured state. As the source entered this state, a dense, massive…
The first broadband X-ray view of the narrow line Seyfert 1 Ton S180
G. A. Matzeu, E. Nardini, M. L. Parker +15
We present joint \textit{XMM-Newton} and \textit{NuSTAR} observations of the `bare' narrow line Seyfert 1 Ton S180 (), carried out in 2016 and providing the first hard X-r…