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dc.contributor.authorOnori, Fen
dc.contributor.authorFranca, FLen
dc.contributor.authorRicci, Fen
dc.contributor.authorBrusa, Men
dc.contributor.authorSani, Een
dc.contributor.authorMaiolino, Robertoen
dc.contributor.authorBianchi, Sen
dc.contributor.authorBongiorno, Aen
dc.contributor.authorFiore, Fen
dc.contributor.authorMarconi, Aen
dc.contributor.authorVignali, Cen
dc.date.accessioned2016-12-21T14:14:29Z
dc.date.available2016-12-21T14:14:29Z
dc.date.issued2017-01-11en
dc.identifier.issn0035-8711
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/261696
dc.description.abstractWe present medium resolution near-infrared spectroscopic observations of 41 obscured and intermediate class active galactic nuclei (AGN; type 2, 1.9 and 1.8; AGN2) with redshift z ≲ 0.1, selected from the $\textit{Swift}$/Burst Alert Telescope 70-month catalogue. The observations have been carried out in the framework of a systematic study of the AGN2 near-infrared spectral properties and have been executed using Infrared Spectrometer And Array Camera/VLT, X-shooter/VLT and LUCI/LBT, reaching an average S/N ratio of ∼30 per resolution element. For those objects observed with X-shooter, we also obtained simultaneous optical and UV spectroscopy. We have identified a component from the broad line region in 13 out of 41 AGN2, with full width at half-maximum (FWHM) > 800 km s$^{-1}$. We have verified that the detection of the broad line region components does not significantly depend on selection effects due to the quality of the spectra, the X-ray or near-infrared fluxes, the orientation angle of the host galaxy or the hydrogen column density measured in the X-ray band. The average broad line region components found in AGN2 has a significantly (a factor 2) smaller FWHM if compared with a control sample of type 1 AGN.
dc.description.sponsorshipThis publication makes use of data products from the Two Micron All Sky Survey, which is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by the National Aeronautics and Space Administration and the National Science Foundation. This research has made use of the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. We acknowledge funding from PRIN/MIUR and PRIN/INAF. MB acknowledges support from the FP7 Career Integration Grant “eEASy” (CIG 321913).
dc.languageengen
dc.language.isoenen
dc.publisherOxford University Press
dc.subjectgalaxies: activeen
dc.subjectquasars: emission linesen
dc.subjectgalaxies: Seyferten
dc.subjectinfrared: galaxiesen
dc.titleDetection of faint broad emission lines in type 2 AGN - I. Near infrared observations and spectral fittingen
dc.typeArticle
prism.endingPage1832
prism.issueIdentifier2en
prism.publicationDate2017en
prism.publicationNameMonthly Notices of the Royal Astronomical Societyen
prism.startingPage1783
prism.volume464en
dc.identifier.doi10.17863/CAM.6899
dcterms.dateAccepted2016-09-15en
rioxxterms.versionofrecord10.1093/mnras/stw2368en
rioxxterms.versionVoRen
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2017-01-11en
dc.contributor.orcidMaiolino, Roberto [0000-0002-4985-3819]
dc.identifier.eissn1365-2966
dc.publisher.urlhttp://dx.doi.org/10.1093/mnras/stw2368en
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idSTFC (ST/M001172/1)
cam.issuedOnline2016-09-16en
dc.identifier.urlhttp://dx.doi.org/10.1093/mnras/stw2368en
cam.orpheus.successThu Jan 30 12:56:45 GMT 2020 - The item has an open VoR version.*
rioxxterms.freetoread.startdate2100-01-01


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