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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…
A deep, multi-epoch Chandra HETG study of the ionized outflow from NGC 4051
A. Ogorzalek, A. L. King, S. W. Allen +2
Actively accreting supermassive black holes significantly impact the evolution of their host galaxies, truncating further star formation by expelling large fractions of gas with wi…
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…