Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/32401
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Matzeu, G. A. | en_US |
dc.contributor.author | NARDINI, EMANUELE | en_US |
dc.contributor.author | Parker, M. L. | en_US |
dc.contributor.author | Reeves, J. N. | en_US |
dc.contributor.author | BRAITO, Valentina | en_US |
dc.contributor.author | Porquet, D. | en_US |
dc.contributor.author | Middei, R. | en_US |
dc.contributor.author | Kammoun, E. | en_US |
dc.contributor.author | Lusso, E. | en_US |
dc.contributor.author | Alston, W. N. | en_US |
dc.contributor.author | Giustini, M. | en_US |
dc.contributor.author | Lobban, A. P. | en_US |
dc.contributor.author | Joyce, A. M. | en_US |
dc.contributor.author | Igo, Z. | en_US |
dc.contributor.author | Ebrero, J. | en_US |
dc.contributor.author | Ballo, L. | en_US |
dc.contributor.author | Santos-Lleó, M. | en_US |
dc.contributor.author | Schartel, N. | en_US |
dc.date.accessioned | 2022-06-17T13:52:19Z | - |
dc.date.available | 2022-06-17T13:52:19Z | - |
dc.date.issued | 2020 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/32401 | - |
dc.description.abstract | We 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 hard X-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<SUB>e</SUB> ~ 0.3 keV) and optically thick (τ ~ 10) corona, mostly contributing to the soft X-rays; (c) Comptonization by a standard hot ($kT_{\rm \mathrm{ e}}\gtrsim 100$ keV) and optically thin (τ < 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 $R_{\rm hot}\lesssim R_{\rm warm}\lesssim 10\, r_{\rm g}$. 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. 3.1σ significance) evidence of which is indeed found in the RGS spectrum. | en_US |
dc.language.iso | eng | en_US |
dc.title | The first broad-band X-ray view of the narrow-line Seyfert 1 Ton S180 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/staa2076 | en_US |
dc.identifier.scopus | 2-s2.0-85092892112 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/497/2/2352/5871831 | en_US |
dc.identifier.url | http://arxiv.org/abs/2007.06575v1 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 497 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 2352 | en_US |
dc.relation.lastpage | 2370 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2020MNRAS.497.2352M | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Arcetri | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.orcid | 0000-0001-9226-8992 | - |
crisitem.author.orcid | 0000-0002-2629-4989 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
È visualizzato nelle collezioni: | 1.01 Articoli in rivista |
File in questo documento:
File | Descrizione | Dimensioni | Formato | |
---|---|---|---|---|
staa2076.pdf | Pdf editoriale | 3.41 MB | Adobe PDF | Visualizza/apri |
Page view(s)
37
controllato il 23-apr-2024
Download(s)
23
controllato il 23-apr-2024
Google ScholarTM
Check
Altmetric
Altmetric
Tutti i documenti in DSpace sono pubblicati ad Accesso Aperto, salvo diversa indicazione per alcuni documenti specifici.