Name:Elvis, Martin
Email:melvis@cfa.harvard.edu
Institution:Harvard-Smithsonian Center for Astrophysics
Title:Tilted Tori & Quasar Obscuration
Topic:Synergy with other surveys
Preference:Talk
Abstract:The longstanding “Unified Scheme” of AGNs uses a cold, thick torus to block our view of the nucleus from most directions. This is a theoretically implausible structure, even if clumpy. An alternative structure, which arises naturally in some scenarios for feeding supermassive black holes, is a "tilted torus", a warped thin dusty disk (Sanders et al. 1989, Lawrence and Elvis 2010). Roseboom et al. (2013) found that this model predicted the correct, wide, distribution of hot dust covering factors for SDSS type 1 (broad-line) quasars (mean ~0.35, sigma ~0.2). Here we report the spectral energy distributions (from the overlap of the WISE, UKIDSS/2MASS, SDSS surveys) for ~200 type 2 SDSS quasars with 0.3 < z < 0.83 from Reyes et al. (2008), with luminosities 8.3 < log L([OIII]) < 10. The tilted torus model predicts a higher average covering factor (~0.65) for these objects than for a matched sample of type 1 quasars. We will present our results on this test of the tilted torus model.