dc.contributor.author Onori, F en dc.contributor.author Franca, FL en dc.contributor.author Ricci, F en dc.contributor.author Brusa, M en dc.contributor.author Sani, E en dc.contributor.author Maiolino, Roberto en dc.contributor.author Bianchi, S en dc.contributor.author Bongiorno, A en dc.contributor.author Fiore, F en dc.contributor.author Marconi, A en dc.contributor.author Vignali, C en dc.date.accessioned 2016-12-21T14:14:29Z dc.date.available 2016-12-21T14:14:29Z dc.date.issued 2017-01-11 en dc.identifier.issn 0035-8711 dc.identifier.uri https://www.repository.cam.ac.uk/handle/1810/261696 dc.description.abstract We 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.sponsorship This 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.language eng en dc.language.iso en en dc.publisher Oxford University Press dc.subject galaxies: active en dc.subject quasars: emission lines en dc.subject galaxies: Seyfert en dc.subject infrared: galaxies en dc.title Detection of faint broad emission lines in type 2 AGN - I. Near infrared observations and spectral fitting en dc.type Article prism.endingPage 1832 prism.issueIdentifier 2 en prism.publicationDate 2017 en prism.publicationName Monthly Notices of the Royal Astronomical Society en prism.startingPage 1783 prism.volume 464 en dc.identifier.doi 10.17863/CAM.6899 dcterms.dateAccepted 2016-09-15 en rioxxterms.versionofrecord 10.1093/mnras/stw2368 en rioxxterms.version VoR en rioxxterms.licenseref.uri http://www.rioxx.net/licenses/all-rights-reserved en rioxxterms.licenseref.startdate 2017-01-11 en dc.contributor.orcid Maiolino, Roberto [0000-0002-4985-3819] dc.identifier.eissn 1365-2966 dc.publisher.url http://dx.doi.org/10.1093/mnras/stw2368 en rioxxterms.type Journal Article/Review en pubs.funder-project-id STFC (ST/M001172/1) cam.issuedOnline 2016-09-16 en dc.identifier.url http://dx.doi.org/10.1093/mnras/stw2368 en cam.orpheus.success Thu Jan 30 12:56:45 GMT 2020 - The item has an open VoR version. * rioxxterms.freetoread.startdate 2100-01-01
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