The link between X-ray complexity and optical lines in NLS1s

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Vietri, A. Berton, M. Ciroi, S. Congiu, E. la Mura, G. Cracco, V. Frezzato, M. Chen, S. Cattapan, A. Peruzzi, T. Rafanelli, P. 2019-11-07T12:06:26Z 2019-11-07T12:06:26Z 2018-01-01
dc.identifier.citation Vietri , A , Berton , M , Ciroi , S , Congiu , E , la Mura , G , Cracco , V , Frezzato , M , Chen , S , Cattapan , A , Peruzzi , T & Rafanelli , P 2018 , ' The link between X-ray complexity and optical lines in NLS1s ' , Proceedings of Science , vol. 328 . en
dc.identifier.issn 1824-8039
dc.identifier.other PURE UUID: 9e71a3f6-7129-44a0-8610-af76fa8a2c3c
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE LINK:
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dc.description | openaire: EC/H2020/730562/EU//RadioNet
dc.description.abstract Narrow-line Seyfert 1 galaxies (NLS1s) are a subclass of active galactic nuclei (AGN). It is often believed that these AGN have small black hole mass, which is responsible for the narrowness of the permitted lines. They are also characterised by a high accretion rate, typically closer to the Eddington limit. Nevertheless, narrow permitted lines might also be caused by a disk-like broad-line region (BLR) viewed pole-on. This class of objects presents strong X-ray emission, which is characterised by a very steep spectral index described by a single power law. In particular, some of them exhibit particular features around the iron K-shell energy at 6-8 keV. Recently, this different spectral behaviour was attributed to inclination. In this work we are going to analyse optical spectra to measure in different ways the width of Hβ, which is another potential inclination indicator. Our aim is to search for a correlation between the high-energy spectral complexity and FWHM of Hβ, in order to verify whether or not the broad-line region could be flattened. en
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Scuola Internazionale Superiore di Studi Avanzati (S I S S A)
dc.relation info:eu-repo/grantAgreement/EC/H2020/730562/EU//RadioNet
dc.relation.ispartofseries Proceedings of Science en
dc.relation.ispartofseries Volume 328 en
dc.rights openAccess en
dc.subject.other General en
dc.subject.other 115 Astronomy and space science en
dc.title The link between X-ray complexity and optical lines in NLS1s en
dc.type Conference article fi
dc.description.version Peer reviewed en
dc.contributor.department University of Padova
dc.contributor.department Metsähovi Radio Observatory
dc.contributor.department INAF—Osservatorio Astronomico di Brera
dc.contributor.department Universidade de Lisboa
dc.subject.keyword General
dc.subject.keyword 115 Astronomy and space science
dc.identifier.urn URN:NBN:fi:aalto-201911076130
dc.identifier.doi 10.22323/1.328.0047
dc.type.version publishedVersion

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