69 citations · 297 across the 16 of their papers we have counts for
18 papers · 1 filter
Black hole masses and accretion states in ULXs
Roberto Soria, Zdenka Kuncic
We summarize indirect empirical arguments used for estimating black hole (BH) masses in ultraluminous X-ray sources (ULXs). The interpretation of the X-ray data is still too model-…
X-ray Polarization Signatures of Compton Scattering in Magnetic Cataclysmic Variables
Aimee McNamara, Zdenka Kuncic, Kinwah Wu
Compton scattering within the accretion column of magnetic cataclysmic variables (mCVs) can induce a net polarization in the X-ray emission. We investigate this process using Monte…
Jet enhanced accretion growth of supermassive black holes
Erin Jolley, Zdenka Kuncic
We investigate the effect of a disc-driven jet on the accretion growth of cosmological supermassive black holes (SMBHs). The presence of a jet enhances the mass growth rate because…
Constraints on jet-driven disk accretion in Sagittarius A*
Erin J. D. Jolley, Zdenka Kuncic
We revisit theoretical and observational constraints on geometrically-thin disk accretion in Sagittarius A* (Sgr A*). We show that the combined effects of mass outflows and electro…
Characteristic temperatures and spectral appearance of ULX disks
Roberto Soria, Kinwah Wu, Zdenka Kuncic
A standard disk around an accreting black hole may become effectively optically-thin and scattering dominated in the inner region, for high accretion rates (as already predicted by…
On the origin of radio core emission in radio-quiet quasars
Katherine Blundell, Zdenka Kuncic
We present a model for the radio emission from radio-quiet quasar nuclei. We show that a thermal origin for the high brightness temperature, flat spectrum point sources (known as r…