dc.contributor.author | Mundo, Sergio A | |
dc.contributor.author | Kara, Erin A | |
dc.contributor.author | Cackett, Edward M | |
dc.contributor.author | Fabian, AC | |
dc.contributor.author | Jiang, J | |
dc.contributor.author | Mushotzky, RF | |
dc.contributor.author | Parker, ML | |
dc.contributor.author | Pinto, C | |
dc.contributor.author | Reynolds, CS | |
dc.contributor.author | Zoghbi, A | |
dc.date.accessioned | 2022-07-18T14:54:57Z | |
dc.date.available | 2021-09-20T18:22:27Z | |
dc.date.available | 2022-07-18T14:54:57Z | |
dc.date.issued | 2019 | |
dc.identifier.uri | https://hdl.handle.net/1721.1/132448.2 | |
dc.description.abstract | <jats:title>ABSTRACT</jats:title>
<jats:p>We present the results of X-ray spectral and timing analyses of the closest gamma-ray emitting narrow-line Seyfert 1 (γ-NLS1) galaxy, 1H 0323+342. We use observations from a recent, simultaneous XMM–Newton/NuSTAR campaign. As in radio-quiet NLS1s, the spectrum reveals a soft excess at low energies (≲2 keV) and reflection features such as a broad iron K emission line. We also find evidence of a hard excess at energies above ∼35 keV that is likely a consequence of jet emission. Our analysis shows that relativistic reflection is statistically required, and using a combination of models that includes the reflection model relxill for the broad-band spectrum, we find an inclination of $i=63^{+7}_{-5}$ degrees, which is in tension with much lower values inferred by superluminal motion in radio observations. We also find a flat (q = 2.2 ± 0.3) emissivity profile, implying that there is more reflected flux than usual being emitted from the outer regions of the disc, which in turn suggests a deviation from the thin disc model assumption. We discuss possible reasons for this, such as reflection off of a thick accretion disc geometry.</jats:p> | en_US |
dc.language.iso | en | |
dc.publisher | Oxford University Press (OUP) | en_US |
dc.relation.isversionof | 10.1093/mnras/staa1744 | en_US |
dc.rights | Creative Commons Attribution-Noncommercial-Share Alike | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | en_US |
dc.source | arXiv | en_US |
dc.title | The origin of X-ray emission in the gamma-ray emitting narrow-line Seyfert 1 1H 0323+342 | en_US |
dc.type | Article | en_US |
dc.contributor.department | MIT Kavli Institute for Astrophysics and Space Research | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Department of Physics | en_US |
dc.relation.journal | Monthly Notices of the Royal Astronomical Society | en_US |
dc.eprint.version | Author's final manuscript | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dc.date.updated | 2020-10-30T16:42:16Z | |
dspace.orderedauthors | Mundo, SA; Kara, E; Cackett, EM; Fabian, AC; Jiang, J; Mushotzky, RF; Parker, ML; Pinto, C; Reynolds, CS; Zoghbi, A | en_US |
dspace.date.submission | 2020-10-30T16:42:22Z | |
mit.journal.volume | 496 | en_US |
mit.journal.issue | 3 | en_US |
mit.license | OPEN_ACCESS_POLICY | |
mit.metadata.status | Publication Information Needed | en_US |