EW[OIII] as an Orientation Indicator for Quasars: Implications for the Torus

EW[OIII] as an Orientation Indicator for Quasars: Implications for the Torus

We present an analysis of the average spectral properties of 12,000 SDSS quasars as a function of accretion disc inclination, as measured from the equivalent width of the [OIII] 5007Å line. The use of this indicator on a large sample of quasars from the SDSS DR7 has proven the presence of orientatio...

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Bibliographic Details
Main Authors: Susanna Bisogni, Alessandro Marconi, Guido Risaliti, Elisabeta Lusso
Format: Article
Language:English
Published: Frontiers Media S.A. 2017-11-01
Series:Frontiers in Astronomy and Space Sciences
Subjects:
galaxies: active
galaxies: nuclei
galaxies: Seyfert
quasars: emission lines
quasars: general
Online Access:http://journal.frontiersin.org/article/10.3389/fspas.2017.00048/full

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http://journal.frontiersin.org/article/10.3389/fspas.2017.00048/full

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