Suzaku observations of ‘bare’ active galactic nuclei

Show simple item record

dc.creator Walton, D. J.
dc.creator Nardini, E.
dc.creator Fabian, A. C.
dc.creator Gallo, Luigi C.
dc.creator Reis, R. C.
dc.date.accessioned 2018-03-05T14:06:48Z
dc.date.available 2018-03-05T14:06:48Z
dc.date.issued 2013-02
dc.identifier.issn 0035-8711
dc.identifier.uri http://library2.smu.ca/handle/01/27339
dc.description Publisher's Version/PDF
dc.description.abstract We present an X-ray spectral analysis of a large sample of 25 ‘bare’ active galactic nuclei (AGN), sources with little or no complicating intrinsic absorption, observed with Suzaku. Our work focuses on studying the potential contribution from relativistic disc reflection and examining the implications of this interpretation for the intrinsic spectral complexities frequently displayed by AGN in the X-ray bandpass. During the analysis, we take the unique approach of attempting to simultaneously undertake a systematic analysis of the whole sample, as well as a detailed treatment of each individual source, and find that disc reflection has the required flexibility to successfully reproduce the broad-band spectrum observed for all of the sources considered. Where possible, we use the reflected emission to place constraints on the black hole spin for this sample of sources. Our analysis suggests a general preference for rapidly rotating black holes, which if taken at face value is most consistent with the scenario in which supermassive black hole growth is dominated by prolonged, ordered accretion. However, there may be observational biases towards AGN with high spin in the compiled sample, limiting our ability to draw strong conclusions for the general population at this stage. Finally, contrary to popular belief, our analysis also implies that the dichotomy between radio-loud/radio-quiet AGN is not solely related to black hole spin. en_CA
dc.description.provenance Submitted by Betty McEachern (betty.mceachern@smu.ca) on 2018-03-05T14:06:48Z No. of bitstreams: 1 Gallo_Luigi_C_article_2013_e.pdf: 1600282 bytes, checksum: ed3e35865e1de21d6c57b432f42f945a (MD5) en
dc.description.provenance Made available in DSpace on 2018-03-05T14:06:48Z (GMT). No. of bitstreams: 1 Gallo_Luigi_C_article_2013_e.pdf: 1600282 bytes, checksum: ed3e35865e1de21d6c57b432f42f945a (MD5) Previous issue date: 2013 en
dc.language.iso en en_CA
dc.publisher Oxford University Press en_CA
dc.relation.uri https://dx.doi.org/10.1093/mnras/sts227
dc.rights This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2013 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
dc.subject.lcsh Active galactic nuclei
dc.subject.lcsh Black holes (Astronomy)
dc.subject.lcsh Astronomical spectroscopy
dc.title Suzaku observations of ‘bare’ active galactic nuclei en_CA
dc.type Text en_CA
dcterms.bibliographicCitation Monthly Notices of the Royal Astronomical Society 428(4), 2901-2920. (2013) en_CA
 Find Full text

Files in this item


 

Copyright statement:

 
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2013 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
 
Published Version: https://dx.doi.org/10.1093/mnras/sts227
 
 

This item appears in the following Collection(s)

Show simple item record

Search DSpace


Browse

My Account