Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/26703
DC Field | Value | Language |
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dc.contributor.author | Oh, Kyuseok | en_US |
dc.contributor.author | Schawinski, Kevin | en_US |
dc.contributor.author | Koss, Michael | en_US |
dc.contributor.author | Trakhtenbrot, Benny | en_US |
dc.contributor.author | Lamperti, Isabella | en_US |
dc.contributor.author | Ricci, Claudio | en_US |
dc.contributor.author | Mushotzky, Richard | en_US |
dc.contributor.author | Veilleux, Sylvain | en_US |
dc.contributor.author | Berney, Simon | en_US |
dc.contributor.author | Crenshaw, D. Michael | en_US |
dc.contributor.author | Gehrels, Neil | en_US |
dc.contributor.author | Harrison, Fiona | en_US |
dc.contributor.author | MASETTI, NICOLA | en_US |
dc.contributor.author | Soto, Kurt T. | en_US |
dc.contributor.author | Stern, Daniel | en_US |
dc.contributor.author | Treister, Ezequiel | en_US |
dc.contributor.author | Ueda, Yoshihiro | en_US |
dc.date.accessioned | 2020-08-06T10:17:24Z | - |
dc.date.available | 2020-08-06T10:17:24Z | - |
dc.date.issued | 2017 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/26703 | - |
dc.description.abstract | We investigate the observed relationship between black hole mass (M<SUB>BH</SUB>), bolometric luminosity (L<SUB>bol</SUB>) and Eddington ratio (λ<SUB>Edd</SUB>) with optical emission-line ratios ([N II] λ6583/Hα, [S II] λλ6716, 6731/Hα, [O I] λ6300/Hα, [O III] λ5007/Hβ, [Ne III] λ3869/Hβ and He II λ4686/Hβ) of hard X-ray-selected active galactic nuclei (AGN) from the BAT AGN Spectroscopic Survey. We show that the [N II] λ6583/Hα ratio exhibits a significant correlation with λ<SUB>Edd</SUB> (R<SUB>Pear</SUB> = -0.44, p-value = 3 × 10<SUP>-13</SUP>, σ = 0.28 dex), and the correlation is not solely driven by M<SUB>BH</SUB> or L<SUB>bol</SUB>. The observed correlation between [N II] λ6583/Hα ratio and M<SUB>BH</SUB> is stronger than the correlation with L<SUB>bol</SUB>, but both are weaker than the λ<SUB>Edd</SUB> correlation. This implies that the large-scale narrow lines of AGN host galaxies carry information about the accretion state of the AGN central engine. We propose that [N II] λ6583/Hα is a useful indicator of Eddington ratio with 0.6 dex of rms scatter, and that it can be used to measure λ<SUB>Edd</SUB> and thus M<SUB>BH</SUB> from the measured L<SUB>bol</SUB>, even for high-redshift obscured AGN. We briefly discuss possible physical mechanisms behind this correlation, such as the mass-metallicity relation, X-ray heating, and radiatively driven outflows. | en_US |
dc.language.iso | eng | en_US |
dc.title | BAT AGN Spectroscopic Survey - III. An observed link between AGN Eddington ratio and narrow-emission-line ratios | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stw2467 | en_US |
dc.identifier.scopus | 2-s2.0-85014644513 | en_US |
dc.identifier.isi | 000393647100015 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/464/2/1466/2282855 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 464 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 1466 | en_US |
dc.relation.lastpage | 1473 | en_US |
dc.relation.numberofpages | 8 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 17 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | USA | 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.464.1466O | en_US |
dc.relation.ercsector | Scienze Fisiche Settori ERC (ERC) di riferimento::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation::PE9_11 Relativistic astrophysics | 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.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.orcid | 0000-0001-9487-7740 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
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2017MNRAS__464__1466O.pdf | Pdf editoriale | 1.41 MB | Adobe PDF | View/Open |
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