Absorption from a multi-layer circumnuclear medium and reflection from the accretion disc in NGC 1365
- Creators
- Risaliti, G.
Abstract
NGC 1365 hosts an X-ray obscured AGN known for both its variable absorption and its relativistic features in the reflection component. Recent simultaneous observations performed by XMM-Newton and NuSTAR caught the source in a rare, nearly unobscured state, revealing the presence of a warm absorber and a neutral, but low column density (∼ 10^(22) cm^-2) absorber, usually not observable due to thicker layers along the line of sight. Here I propose a multi-layer structure of the circumnuclear medium which can explain all the observed absorption states of this source, and their variability properties. Remarkably, despite the spectral complexity due to this multi-component absorber, the relativistic reflection component (and hence the black hole spin) can be unambiguously measured through a time resolved spectroscopic analysis.
Additional Information
© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.Additional details
- Eprint ID
- 67439
- Resolver ID
- CaltechAUTHORS:20160527-102505729
- Created
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2016-05-27Created from EPrint's datestamp field
- Updated
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2022-10-04Created from EPrint's last_modified field
- Caltech groups
- NuSTAR