The absorber - INAF-Osservatorio Astronomico di Roma

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SMBH + accretion disc convert gravitational energy into radiation Active Galactic Nuclei Strong (L~10 42 -10 46 erg s -1 ) nonstellar emission from the central regions (nuclei) of some galaxies Type 1/Unobscured AGN Emission lines in the optical spectrum: (‏NLR narrow (from ‏+(‏BLR broad (from X-ray unobscured NLR BLR Torus Emission lines in the optical spectrum: (‏NLR only narrow (from X-ray obscured Type 2/Obscured AGN
The first unification attempts have been focussed on polarization measurements: Antonucci (1984) found a perpendicular alignment of optical polarization relative to the radio axis in a sample of radio galaxies, which was interpreted as due to scattering of photons originally emitted in the ‘vertical’ direction The detection of broad optical lines in the polarized spectrum of the archetypical Seyfert 2, NGC 1068, led Antonucci (1993) to postulate the equivalence between Type 1 and Type 2 AGN, any observational difference due to obscuration along the line-of-sight to the source
Page 1: AGN Obscuration and the Unified Mod
Page 5 and 6: Polarized broad lines have been dis
Page 7 and 8: Absorption within the Sublimation R
Page 9 and 10: One of the most direct consequences
Page 11 and 12: Gallimore et al. 1997 Absorption fr
Page 13 and 14: Nandra 2006 Shu et al. 2011 The pre
Page 15 and 16: Maiolino 2008 Recent models have sh
Page 17 and 18: The presence of these structures is
Page 19 and 20: True Type 2 Seyfert galaxies One of
Page 21 and 22: If the BLR cannot form in weakly ac
Page 23 and 24: Are true type Seyfert 2s rare objec
Page 25 and 26: Raban et al. 2009 Mid-infrared inte
Page 27 and 28: Luminosity and Redshift Dependence
Page 29 and 30: The origin of the anticorrelation b
Page 31 and 32: Unusual Geometries While the genera
Page 33 and 34: LOFT Large Observatory For x-ray Ti
Page 35: Wide Field Monitor Requirements

The absorber - INAF-Osservatorio Astronomico di Roma

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