4 papers
X-ray Reflection as Diagnostic of Supermassive Black Hole Binary Properties
Julie Malewicz, Tamara Bogdanović, David R. Ballantyne +2
We investigate correlations between prominent features in the relativistic X-ray reflection spectrum emitted by an accreting supermassive black hole (SMBH) binary with the underlyi…
X-Ray Reflection Signatures of Supermassive Black Hole Binaries
Julie Malewicz, David R. Ballantyne, Tamara BogdanoviÄ +2
We investigate the presence of supermassive black hole (SMBH) binary signatures and the feasibility of identifying them through X-ray reflection spectra. The X-ray emitting region…
Radiation Magnetohydrodynamic Simulation of sub-Eddington Circumbinary Disk around an Equal-mass Massive Black Hole Binary
Vishal Tiwari, Chi-Ho Chan, Tamara BogdanoviÄ +3
We present the first three-dimensional radiation magnetohydrodynamic (RMHD) simulation of a sub-Eddington circumbinary disk (CBD) around an equal-mass massive black hole binary (MB…
A Large Systematic Search for Close Supermassive Binary and Rapidly Recoiling Black Holes -- IV. Ultraviolet spectroscopy
Jessie C. Runnoe, Michael Eracleous, Tamara BogdanoviÄ +2
We present Hubble Space Telescope ultraviolet (UV) of 13 quasars at z<0.7, along with contemporaneous optical spectra from ground-based telescopes. The targets were selected to hav…