Dust obscuration of the narrow line region of active galactic nuclei

To estimate the dust absorption of the Narrow Line Region (NLR) of AGN, we have compared the infrared [NeIII] 15.55 μm line and optical [OIII] 5007 Å line fluxes of 59 galaxies having SDSS and IRS low and high resolution spectra. Dividing our objects into objects with infrared spectra showing silica...

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Bibliographic Details
Published in:Astrophysics 2012-12, Vol.55 (4), p.460-470
Main Authors: Sargsyan, L., Gevorgyan, M., Abrahamyan, H. V., Kostandyan, G., Paronyan, G., Samsonyan, A., Sargsyan, D., Sinamyan, P.
Format: Article
Language:English
Subjects:
Absorption
Astronomy
Astrophysics
Astrophysics and Astroparticles
Astrophysics and Cosmology
Dust
Emissions
Observations and Techniques
Physics
Physics and Astronomy
Silicates
Space Exploration and Astronautics
Space Sciences (including Extraterrestrial Physics
Spectrum analysis
Stars & galaxies
Toy industry
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Summary:To estimate the dust absorption of the Narrow Line Region (NLR) of AGN, we have compared the infrared [NeIII] 15.55 μm line and optical [OIII] 5007 Å line fluxes of 59 galaxies having SDSS and IRS low and high resolution spectra. Dividing our objects into objects with infrared spectra showing silicate feature at 9.7 μm in absorption, in emission, and without this feature in their spectra, we determined that ~87 % of the emission from the NLR for objects with silicate absorption is absorbed by the dusty torus surrounding the AGN.
ISSN:0571-7256
1573-8191
DOI:10.1007/s10511-012-9252-7