456 citations · 7.7k across the 136 of their papers we have counts for
135 papers
Revisiting UV/optical continuum time lags in AGN
E. S. Kammoun, L. Robin, I. E. Papadakis +2
In this paper, we present an updated version of our model (KYNXiltr) which considers thermal reverberation of a standard Novikov-Thorne accretion disc illuminated by an X-ray point…
The RoboPol sample of optical polarimetric standards
D. Blinov, S. Maharana, F. Bouzelou +34
Optical polarimeters are typically calibrated using measurements of stars with known and stable polarization parameters. However, there is a lack of such stars available across the…
Far-Ultraviolet Spectroscopy Of Active Galactic Nuclei With AstroSat/UVIT
Shrabani Kumar, G. C. Dewangan, K. P. Singh +4
$\require{mediawiki-texvc}$ We study accretion disk emission from eight Seyfert active galactic nuclei (AGN) using far ultra-violet ( ) slit-less grating sp…
Contrasting X-ray/UV time-lags in Seyfert 1 galaxies NGC 4593 and NGC 7469 using AstroSat observations
Kavita Kumari, G. C. Dewangan, I. E. Papadakis +6
We study accretion disk-corona connection in Seyfert 1 galaxies using simultaneous UV/X-ray observations of NGC 4593 (July 14-18, 2016) and NGC 7469 (October 15-19, 2017) performed…
The universal shape of the X-ray variability power spectrum of AGN up to
M. Paolillo, I. E. Papadakis, W. N. Brandt +12
We study the ensemble X-ray variability properties of Active Galactic Nuclei (AGN) over a large range of timescales (20 ks 14 yrs), redshift (), lu…
A theoretical study of the time-lags due to Comptonization and the constraints on the X-ray corona in AGN
W. Zhang, I. E. Papadakis, M. Dovčiak +2
We study the Fourier time-lags due to the Comptonization of disc-emitted photons in a spherical, uniform, and stationary X-ray corona, which located on the rotational axis of the b…