143 citations · 1.3k across the 30 of their papers we have counts for
24 papers
Measuring monster MBHs: maybe mighty, maybe merely massive
M. Gliozzi, A. Akylas, J. K. Williams +1
Accurate black hole mass (MBH) measurements in high-z galaxies are difficult yet crucial to constrain the growth of supermassive BHs, and to discriminate between competing BH seed…
Observatory Science with eXTP
Ping Zhou, Jirong Mao, Liang Zhang +97
Scheduled for launch in 2030, the enhanced X-ray Timing and Polarization (eXTP) telescope is a Chinese space-based mission aimed at studying extreme conditions and phenomena in ast…
Broadband X-ray/UV/optical time-resolved spectroscopy of NGC 5548: The origin of the UV/optical variability in active galactic nuclei
E. Kammoun, I. E. Papadakis, M. Dovčiak +1
Recently, nearby active galactic nuclei (AGN) have been subject to long X-rays/UV/optical monitoring campaigns. These campaigns reveal a strong correlation between the various UV a…
The X-ray variability of AGN: power-spectrum and variance analysis of the Swift/BAT light curves
I. E. Papadakis, V. Binas-Valavanis
We study the X-ray power spectrum of Active Galactic Nuclei (AGN) to investigate whether Seyfert I and II power spectra are similar or not, whether the AGN variability depends on b…
Comparing indirect methods for black hole masses in AGN: the good, the bad, and the ugly
M. Gliozzi, J. K. Williams, A. Akylas +4
The black hole mass MBH is crucial in constraining the growth of supermassive BHs within their host galaxies. Since direct measurements of MBH with dynamical methods are restricted…
Detection of X-ray/UV delay in NGC 4051 using AstroSat observations
Kavita Kumari, G. C. Dewangan, I. E. Papadakis +1
We study the connection between the variations in the far ultra-violet (FUV), near ultra-violet (NUV) and X-ray band emission from NGC 4051 using 4-days long AstroSat observations…