How the effects of resonant absorption on black hole reflection spectra can mimic high-velocity outflows

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dc.creator Gallo, Luigi C.
dc.creator Fabian, A. C.
dc.date.accessioned 2014-11-05T18:41:19Z
dc.date.available 2014-11-05T18:41:19Z
dc.date.issued 2011-11
dc.identifier.issn 1745-3933
dc.identifier.uri http://library2.smu.ca/xmlui/handle/01/25901
dc.description Publisher's version/PDF en_CA
dc.description.abstract Narrow absorption lines seen in the 2–10 keV spectra of active galaxies and Galactic black holes are normally attributed to iron in high-velocity outflows or inflows. We consider the possibility that such features could arise naturally in the accretion disc. Resonant absorption by highly ionized iron (e.g. Fe XXVI and Fe XXV) in an optically thin plasma that is located above the disc and rotating with it could reproduce narrow features in the reflection component of the spectrum as it emerges from the disc. Depending on the inclination of the disc and the exact geometry of the hot plasma (e.g. whether it blanket the disc or a ring), apparently narrow absorption features could be detected between 4 and 10 keV. Such an explanation requires no high-velocity outflow/inflow and is consistent with a reflection-based interpretation for accreting black holes systems. en_CA
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dc.language.iso en en_CA
dc.publisher Oxford University Press on behalf of the Royal Astronomical Society en_CA
dc.relation.uri http://dx.doi.org/10.1111/j.1745-3933.2011.01143.x
dc.rights This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2011 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
dc.subject.lcsh Black holes (Astronomy)
dc.subject.lcsh Spectrum analysis
dc.subject.lcsh Accretion (Astrophysics)
dc.subject.lcsh Active galaxies
dc.title How the effects of resonant absorption on black hole reflection spectra can mimic high-velocity outflows en_CA
dc.type Text en_CA
dcterms.bibliographicCitation Monthly Notices of the Royal Astronomical Society 418(1), L59-L63. (2011) en_CA
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This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2011 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
 
Published Version: http://dx.doi.org/10.1111/j.1745-3933.2011.01143.x
 
 

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