90 citations · 931 across the 88 of their papers we have counts for
7 papers · 1 filter
First detection of the outer edge of an AGN accretion disc: Very fast multiband optical variability of NGC 4395 with GTC/HiPERCAM and LT/IO:O
I. M. McHardy, M. Beard, E. Breedt +11
We present fast (~200s sampling) ugriz photometry of the low mass AGN NGC 4395 with the Liverpool Telescope, followed by very fast (3s sampling) us, gs, rs, is and zs simultaneous…
NuSTAR observations of a heavily X-ray obscured AGN in the dwarf galaxy J144013+024744
Shrey. Ansh, Chien-Ting J. Chen, W. N. Brandt +10
We present a multi-wavelength analysis of the dwarf Seyfert-2 galaxy J, a candidate obscured active galactic nucleus (AGN) thought to be powered by an intermediate-m…
The Athena X-ray Integral Field Unit: a consolidated design for the system requirement review of the preliminary definition phase
Didier Barret, Vincent Albouys, Jan-Willem den Herder +296
The Athena X-ray Integral Unit (X-IFU) is the high resolution X-ray spectrometer, studied since 2015 for flying in the mid-30s on the Athena space X-ray Observatory, a versatile ob…
A New Emulated Monte Carlo Radiative Transfer Disk-Wind Model: X-Ray Accretion Disk-wind Emulator -- XRADE
G. A. Matzeu, M. Lieu, M. T. Costa +14
We present a new X-Ray Accretion Disk-wind Emulator (\textsc{xrade}) based on the 2.5D Monte Carlo radiative transfer code which provides a physically-motivated, self-consistent tr…
A physical model for the UV/optical power spectra of AGN
Christos Panagiotou, Iossif Papadakis, Erin Kara +2
The UV/optical variability of AGN has long been thought to be driven by the X-ray illumination of the accretion disk. However, recent multi-wavelength campaigns of nearby Seyfert g…
X-ray illuminated accretion discs and quasar microlensing disc sizes
I. E. Papadakis, M. Dovciak, E. Kammoun
We study the half-light radius versus black hole mass as well as the luminosity versus black hole mass relations in active galactic nuclei (AGN) when the disc is illuminated by the…