Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.rights.license© 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society-
dc.contributor.authorMatzeu, G. A.-
dc.contributor.authorNardini, E.-
dc.contributor.authorParker, M. L.-
dc.contributor.authorReeves, J. N.-
dc.contributor.authorBraito, V.-
dc.contributor.authorPorquet, D.-
dc.contributor.authorMiddei, R.-
dc.contributor.authorKammoun, E.-
dc.contributor.authorLusso, E.-
dc.contributor.authorAlston, W. N.-
dc.contributor.authorGiustini, M.-
dc.contributor.authorLobban, A. P.-
dc.contributor.authorJoyce, A. M.-
dc.contributor.authorIgo, Z.-
dc.contributor.authorEbrero, J.-
dc.contributor.authorBallo, L.-
dc.contributor.authorSantos Lleó, M.-
dc.contributor.authorSchartel, N.-
dc.contributor.otherUnidad de Excelencia Científica María de Maeztu Centro de Astrobiología del Instituto Nacional de Técnica Aeroespacial y CSIC, MDM-2017-0737-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society 497(2): 2352–2370(2020)es
dc.description.abstractWe present joint XMM-Newton and NuSTAR observations of the 'bare' narrow-line Seyfert 1 Ton S180 (z = 0.062), carried out in 2016 and providing the first hardX-ray view of this luminous galaxy. We find that the 0.4-30 keV band cannot be self-consistently reproduced by relativistic reflection models, which fail to account simultaneously for the soft and hard X-ray emission. The smooth soft excess prefers extreme blurring parameters, confirmed by the nearly featureless nature of the Reflection Grating Spectrometer (RGS) spectrum, while the moderately broad Fe K line and the modest hard excess above 10 keV appear to arise in a milder gravity regime. By allowing a different origin of the soft excess, the broad-band X-ray spectrum and overall spectral energy distribution (SED) are well explained by a combination of (a) direct thermal emission from the accretion disc, dominating from the optical to the far/extreme UV; (b) Comptonization of seed disc photons by a warm (kT(e) similar to 0.3 keV) and optically thick (tau similar to 10) corona, mostly contributing to the soft X-rays; (c) Comptonization by a standard hot (kT(e) greater than or similar to 100 keV) and optically thin (tau < 0.5) corona, responsible for the primary X-ray continuum; and (d) reflection from the mid/outer part of the disc. The two coronae are suggested to be rather compact, with R-hot less than or similar to R-warm less than or similar to 10 r(g). Our SED analysis implies that Ton S180 accretes at super-Eddington rates. This is a key condition for the launch of a wind, marginal (i.e. 3.1 sigma significance) evidence of which is indeed found in the RGS
dc.description.sponsorshipGAM, MLP, and APL are supported by ESA research fellowships. GAM thanks P. O. Petrucci and M. T. Costa for the useful discussion. EN acknowledges financial contribution from the agreement ASI-INAF n.2017-14-H.0 and partial support from the EU Horizon 2020 Marie Sklodowska-Curie grant agreement no. 664931. JR acknowledges financial support through NASA grant 80NSSC18K1603. VBacknowledges financial support through NASA grant 80NSSC20K0793. RM acknowledges the financial support of INAF (Istituto Nazionale di Astrofisica), Osservatorio Astronomico di Roma, ASI (Agenzia Spaziale Italiana) under contract to INAF: ASI 2014-049-R.0 dedicated to SSDC. WNA acknowledges support from the European Research Council through Advanced Grant 340442, on Feedback. MG is supported by the `Programa de Atraccion de Talento' of the Comunidad de Madrid, grant number 2018-T1/TIC-11733. AMJ acknowledge the National Trainee program and the Irish Research Council; With funding from the Spanish government through the "María de Maeztu Unit of Excellence" accreditation (MDM-2017-0737). We acknowledge support from the Faculty of the European Space Astronomy Centre (ESAC) -Funding reference 493. Part of thiswork was supported by CNES. This research has made use of computing facilities operated by CeSAM data centre at LAM, Marseille,
dc.publisherOxford Academics: Oxford University Presses
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.subjectBlack hole physicses
dc.subjectGalaxies: activees
dc.subjectGalaxies: individual: Ton S180es
dc.subjectGalaxies: nucleies
dc.subjectX rays: galaxieses
dc.titleThe first broad-band X-ray view of the narrow-line Seyfert 1 Ton S180es
dc.contributor.orcidGiustini, M. [0000-0002-1329-658X]-
dc.contributor.orcidKammoun, E. [0000-0002-0273-218X]-
dc.contributor.orcidBraito, V. [0000-0002-2629-4989]-
dc.contributor.orcidMatzeu, G. [0000-0003-1994-5322]-
dc.contributor.orcidParker, M. [0000-0002-8466-7317]-
dc.contributor.orcidLobban, A. [0000-0002-6433-1357]-
dc.contributor.orcidSantos Lleo, M. [0000-0001-5948-8360]-
dc.contributor.orcidMiddei, R. [0000-0001-9815-9092]-
dc.contributor.orcidIgo, Z. [0000-0001-9274-1145]-
dc.contributor.orcidAlston, W. [0000-0003-2658-6559]-
dc.contributor.funderEuropean Research Council (ERC)-
dc.contributor.funderEuropean Commission (EC)-
dc.contributor.funderAgenzia Spaziale Italiana (ASI)-
dc.contributor.funderIstituto Nazionale di Astrofisica (INAF)-
dc.contributor.funderComunidad de Madrid-
dc.contributor.funderNational Aeronautics and Space Administration (NASA)-
dc.description.peerreviewedPeer reviewes
Appears in Collections:(CAB) Artículos

Files in This Item:
File Description SizeFormat 
staa2076.pdf3,41 MBAdobe PDFThumbnail

This item is licensed under a Creative Commons License Creative Commons