438 citations · 4.6k across the 51 of their papers we have counts for
17 papers · 1 filter
Localizing narrow Fe K emission within bright AGN
Carolina Andonie, Franz E. Bauer, Rosamaria Carraro +11
The 6.4 keV Fe Ka emission line is a ubiquitous feature in X-ray spectra of AGN, and its properties track the interaction between the variable primary X-ray continuum and the surro…
X-ray/UV/optical variability of NGC 4593 with Swift: Reprocessing of X-rays by an extended reprocessor
I M McHardy, S D Connolly, K Horne E M Cackett +25
We report the results of intensive X-ray, UV and optical monitoring of the Seyfert 1 galaxy NGC 4593 with Swift. There is no intrinsic flux-related spectral change in the the varia…
Possible range of viscosity parameter to trigger black hole candidates to exhibit different states of outbursts
Santanu Mondal, Sandip K. Chakrabarti, Shreeram Nagarkoti +1
In a two component advective flow around a compact object, a high viscosity Keplerian disk is flanked by a low angular momentum and low viscosity flow which forms a centrifugal pre…
Growing supermassive black holes in the late stages of galaxy mergers are heavily obscured
C. Ricci., F. E. Bauer, E. Treister +10
Mergers of galaxies are thought to cause significant gas inflows to the inner parsecs, which can activate rapid accretion onto supermassive black holes (SMBHs), giving rise to Acti…
IC 751: a new changing-look AGN discovered by NuSTAR
C. Ricci, F. E. Bauer, P. Arevalo +12
We present the results of five NuSTAR observations of the type 2 active galactic nucleus (AGN) in IC 751, three of which were performed simultaneously with XMM-Newton or Swift/XRT.…
The nature and energetics of AGN-driven perturbations in the hot gas in the Perseus Cluster
I. Zhuravleva, E. Churazov, P. Arevalo +7
Cores of relaxed galaxy clusters are often disturbed by AGN. Their Chandra observations revealed a wealth of structures induced by shocks, subsonic gas motions, bubbles of relativi…