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Candidate Type II Quasars from the SDSS: III. Spectropolarimetry Reveals Hidden Type I Nuclei
Nadia L. Zakamska, Gary D. Schmidt, Paul S. Smith +7
We have conducted spectropolarimetry of 12 type II (obscured) quasar candidates selected from the spectroscopic database of the Sloan Digital Sky Survey based on their emission lin…
Magnetically Driven Accretion Flows in the Kerr Metric IV: Dynamical Properties of the Inner Disk
Julian H. Krolik, John F. Hawley, Shigenobu Hirose
This paper continues the analysis of a set of general relativistic 3D MHD simulations of accreting tori in the Kerr metric with different black hole spins. We focus on bound matter…
Are Ultra-Luminous X-ray Sources Intermediate Mass Black Holes Accreting from Molecular Clouds?
Julian H. Krolik
The origin and nature of Ultra-Luminous X-ray sources (ULXs) is a contentious and controversial topic. There are ongoing debates about the masses of the objects responsible, their…
Magnetically Driven Accretion in the Kerr Metric III: Unbound Outflows
Jean-Pierre De Villiers, John F. Hawley, Julian H. Krolik +1
We have carried out fully relativistic numerical simulations of accretion disks in the Kerr metric. In this paper we focus on the unbound outflows that emerge self-consistently fro…
Candidate Type II Quasars from the Sloan Digital Sky Survey: II. From Radio to X-Rays
Nadia L. Zakamska, Michael A. Strauss, Timothy M. Heckman +2
Type II quasars are luminous AGNs whose central engines and broad-line regions are obscured by intervening material; such objects only recently have been discovered in appreciable…
BL Lac X-ray Spectra: simpler than we thought
Eric S. Perlman, Timothy Daugherty, Anuradha Koratkar +10
We report results from {\it XMM-Newton} observations of thirteen X-ray bright BL Lacertae objects, selected from the {\it Einstein} Slew Survey sample. The spectra are generally we…
General Relativistic Magnetohydrodynamic Simulations of Black Hole Accretion Disks: Results and Observational Implications
J. H. Krolik, S. Hirose
A selection of results from the general relativistic MHD accretion simulations described in the previous talk are presented. We find that the magnetic field strength increases shar…