146 citations · 570 across the 16 of their papers we have counts for
28 papers
The multi-epoch X-ray tale of I Zwicky 1 outflows
Daniele Rogantini, Elisa Costantini, Luigi Gallo +3
The narrow-line Seyfert 1 galaxy I Zwicky 1 shows a unique and complex system of ionised gas in outflow, which consists of an ultra-fast wind and a two-component warm absorber. In…
High-density disc reflection spectroscopy of low-mass active galactic nuclei
L. Mallick, A. C. Fabian, J. A. García +13
The standard alpha-disc model predicts an anti-correlation between the density of the inner accretion disc and the black hole mass times square of the accretion rate, as seen in hi…
Acceleration and cooling of the corona during X-ray flares from the Seyfert galaxy I Zw 1
D. R. Wilkins, L. C. Gallo, E. Costantini +2
We report on X-ray flares that were observed from the active galactic nucleus I Zwicky 1 (I Zw 1) in 2020 January by the NuSTAR and XMM-Newton observatories. The X-ray spectrum is…
Mitigating the effects of particle background on the Athena Wide-Field Imager
Eric D. Miller, Catherine E. Grant, Marshall W. Bautz +16
The Wide Field Imager (WFI) flying on Athena will usher in the next era of studying the hot and energetic Universe. WFI observations of faint, diffuse sources will be limited by un…
Light bending and X-ray echoes from behind a supermassive black hole
D. R. Wilkins, L. C. Gallo, E. Costantini +2
The innermost regions of accretion disks around black holes are strongly irradiated by X-rays that are emitted from a highly variable, compact corona, in the immediate vicinity of…
Modelling the Multiwavelength Variability of Mrk 335 using Gaussian Processes
Ryan-Rhys Griffiths, Jiachen Jiang, Douglas J. K. Buisson +12
The optical and UV variability of the majority of AGN may be related to the reprocessing of rapidly-changing X-ray emission from a more compact region near the central black hole.…