294 citations · 1.2k across the 13 of their papers we have counts for
5 papers · 1 filter
The Evolution of Black Hole Mass and Spin in Active Galactic Nuclei
A. R. King, J. E. Pringle, J. A. Hofmann
We argue that supermassive black hole growth in AGN occurs via sequences of randomly--oriented accretion discs with angular momentum limited by self--gravity. These stably co-- or…
Infrared Emission from the Nearby Cool Core Cluster Abell 2597
Megan Donahue, Andres Jordan, Stefi A. Baum +9
We observed the brightest central galaxy (BCG) in the nearby (z=0.0821) cool core galaxy cluster Abell 2597 with the IRAC and MIPS instruments on board the Spitzer Space Telescope.…
The Excitation, Propagation and Dissipation of Waves in Accretion Discs: The Non-linear Axisymmetric Case
M. R. Bate, G. I. Ogilvie, S. H. Lubow +1
We analyse the non-linear propagation and dissipation of axisymmetric waves in accretion discs using the ZEUS-2D hydrodynamics code. The waves are numerically resolved in the verti…
Magnetohydrodynamic turbulence in warped accretion discs
U. Torkelsson, G. I. Ogilvie, A. Brandenburg +3
Warped, precessing accretion discs appear in a range of astrophysical systems, for instance the X-ray binary Her X-1 and in the active nucleus of NGC4258. In a warped accretion dis…
Type Ia Supernovae and Remnant Neutron Stars
A. R. King, J. E. Pringle, D. T. Wickramasinghe
On the basis of the current observational evidence, we put forward the case that the merger of two CO white dwarfs produces both a Type Ia supernova explosion and a stellar remnant…