Is HE 0436–4717 anemic? A deep look at a bare Seyfert 1 galaxy

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dc.creator Bonson, K.
dc.creator Gallo, Luigi C.
dc.creator Vasudevan, R.
dc.date.accessioned 2017-08-31T18:44:54Z
dc.date.available 2017-08-31T18:44:54Z
dc.date.issued 2015-06-11
dc.identifier.issn 0035-8711
dc.identifier.uri http://library2.smu.ca/handle/01/27066
dc.description Publisher's version/PDF
dc.description.abstract A multi-epoch, multi-instrument analysis of the Seyfert 1 galaxy HE 0436–4717 is conducted using optical to X-ray data from XMM–Newton and Swift (including the Burst Alert Telescope). Fitting of the UV-to-X-ray spectral energy distribution shows little evidence of extinction and the X-ray spectral analysis does not confirm previous reports of deep absorption edges from O VIII.HE 0436–4717 is a ‘bare’ Seyfert with negligible line-of-sight absorption making it ideal to study the central X-ray emitting region. Three scenarios were considered to describe the X-ray data: partial covering absorption, blurred reflection, and soft Comptonization. All three interpretations describe the 0.5–10.0 keV spectra well. Extrapolating the models to 100 keV results in poorer fits for the partial covering model.When also considering the rapid variability during one of the XMM–Newton observations, the blurred reflection model appears to describe all the observations in the most self-consistent manner. If adopted, the blurred reflection model requires a very low iron abundance in HE 0436–4717. We consider the possibilities that this is an artefact of the fitting process, but it appears possible that it is intrinsic to the object. en_CA
dc.language.iso en en_CA
dc.publisher Oxford University Press en_CA
dc.relation.uri http://dx.doi.org/doi:10.1093/mnras/stv444
dc.rights This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2015 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
dc.subject.lcsh Active galaxies
dc.subject.lcsh Seyfert galaxies
dc.subject.lcsh X-ray sources, Galactic
dc.title Is HE 0436–4717 anemic? A deep look at a bare Seyfert 1 galaxy en_CA
dc.type Text en_CA
dcterms.bibliographicCitation Monthly Notices of the Royal Astronomical Society 450(1), 857–872. (2015) en_CA


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This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2015 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
 
Published Version: http://dx.doi.org/doi:10.1093/mnras/stv444
 
 

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