SIMBAD references

2017MNRAS.464.1783O - Mon. Not. R. Astron. Soc., 464, 1783-1832 (2017/January-2)

Detection of faint broad emission lines in type 2 AGN - I. Near-infrared observations and spectral fitting.

ONORI F., LA FRANCA F., RICCI F., BRUSA M., SANI E., MAIOLINO R., BIANCHI S., BONGIORNO A., FIORE F., MARCONI A. and VIGNALI C.

Abstract (from CDS):

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 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.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: active - quasars: emission lines - galaxies: Seyfert - infrared: galaxies - infrared: galaxies

Simbad objects: 44

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2021.05.18-23:41:42

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