Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/26674
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ordovás-Pascual, I. | en_US |
dc.contributor.author | Mateos, S. | en_US |
dc.contributor.author | Carrera, F. J. | en_US |
dc.contributor.author | Wiersema, K. | en_US |
dc.contributor.author | Barcons, X. | en_US |
dc.contributor.author | BRAITO, Valentina | en_US |
dc.contributor.author | CACCIANIGA, Alessandro | en_US |
dc.contributor.author | Del Moro, A. | en_US |
dc.contributor.author | DELLA CECA, Roberto | en_US |
dc.contributor.author | SEVERGNINI, Paola | en_US |
dc.date.accessioned | 2020-07-28T12:48:15Z | - |
dc.date.available | 2020-07-28T12:48:15Z | - |
dc.date.issued | 2017 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/26674 | - |
dc.description.abstract | Approximately 3-17 per cent of active galactic nuclei (AGNs) without detected rest-frame UV/optical broad emission lines (type-2 AGN) do not show absorption in X-rays. The physical origin behind the apparently discordant optical/X-ray properties is not fully understood. Our study aims at providing insight into this issue by conducting a detailed analysis of the nuclear dust extinction and X-ray absorption properties of two AGNs with low X-ray absorption and with high optical extinction, for which a rich set of high-quality spectroscopic data is available from XMM-Newton archive data in X-rays and XSHOOTER proprietary data at UV-to-NIR wavelengths. In order to unveil the apparent mismatch, we have determined the A<SUB>V</SUB>/N<SUB>H</SUB> and both the supermassive black hole and the host galaxy masses. We find that the mismatch is caused in one case by an abnormally high dust-to-gas ratio that makes the UV/optical emission to appear more obscured than in the X-rays. For the other object, we find that the dust-to-gas ratio is similar to the Galactic one but the AGN is hosted by a very massive galaxy so that the broad emission lines and the nuclear continuum are swamped by the star light and difficult to detect. | en_US |
dc.language.iso | eng | en_US |
dc.title | AGNs with discordant optical and X-ray classification are not a physical family: diverse origin in two AGNs | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stx862 | en_US |
dc.identifier.scopus | 2-s2.0-85053732148 | en_US |
dc.identifier.isi | 000402825000048 | en_US |
dc.identifier.url | https://arxiv.org/pdf/1704.01595.pdf | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/469/1/693/3192211 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 469 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | 693 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 10 | 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 | en_US |
dc.identifier.adsbibcode | 2017MNRAS.469..693O | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation::PE9_6 Stars and stellar systems | 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. Brera | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.orcid | 0000-0002-2629-4989 | - |
crisitem.author.orcid | 0000-0002-2339-8264 | - |
crisitem.author.orcid | 0000-0001-7551-2252 | - |
crisitem.author.orcid | 0000-0001-5619-5896 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
stx862.pdf | PDF editoriale | 2.91 MB | Adobe PDF | View/Open |
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