Browsing Articles by Author "Walton, Dominic"

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The hard X-ray perspective on the soft X-ray excess

Vasudevan, Ranjan V.; Mushotzky, Richard F.; Reynolds, Christopher S.; Fabian, Andrew C.; Lohfink, Anne M.; Zoghbi, Abderahmen; Gallo, Luigi C.; Walton, Dominic (IOP Publishing Limited, 2014-04-10)

The X-ray spectra of many active galactic nuclei exhibit a “soft excess” below 1 keV, whose physical origin remains unclear. Diverse models have been suggested to account for it, including ionized reflection ...
A low-flux state in IRAS 00521−7054 seen with NuSTAR and XMM–Newton: relativistic reflection and an ultrafast outflow

Walton, Dominic; Nardini, Emanuele; Gallo, Luigi C.; Reynolds, M. T.; Ricci, C.; Dauser, Thomas; Fabian, Andrew C.; Garcia, J. A.; Harrison, F. A.; Risaliti, G.; Stern, D. (Oxford University PressRoyal Astronomical Society, 2019-01-16)

We present results from a deep, coordinated XMM–Newton + NuSTAR observation of the Seyfert 2 galaxy IRAS 00521−7054. The NuSTAR data provide the first detection of this source in ...

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