We review our knowledge of the most basic properties of the AGN obscuring region - its location, scale, symmetry, and mean covering factor - and discuss new evidence on the distribution of covering factors in a sample of ~9000 quasars with WISE, UKIDSS, and SDSS photometry. The obscuring regions of AGN may be in some ways more complex than we thought - multi-scale, not symmetric, chaotic - and in some ways simpler - with no dependence on luminosity, and a covering factor distribution that may be determined by the simplest of considerations - e.g. random misalignments.
|Publication status||Published - 1 Mar 2013|
|Event||Torus Workshop 2012 - San Antonio, Texas, United Kingdom|
Duration: 5 Dec 2012 → 7 Dec 2012
|Workshop||Torus Workshop 2012|
|City||San Antonio, Texas|
|Period||5/12/12 → 7/12/12|
- Astrophysics - Cosmology and Extragalactic Astrophysics