6 papers
The steady-state structure of accretion discs in central magnetic fields
O. M. Matthews, R. Speith, M. R. Truss +1
We develop a new analytic solution for the steady-state structure of a thin accretion disc under the influence of a magnetic field that is anchored to the central star. The solutio…
Long time-scale variability in GRS1915+105
Michael Truss, Graham Wynn
We present very high resolution hydrodynamical simulations of accretion discs in black hole X-ray binaries accreting near the Eddington limit. The results show that mass loss, irra…
Accretion dynamics in neutron star black hole binaries
S. Rosswog, R. Speith, G. A. Wynn
We perform three-dimensional, Newtonian hydrodynamic simulations with a nuclear equation of state to investigate the accretion dynamics in neutron star black hole systems. We find…
Photometric variability of the unique magnetic white dwarf GD356
C. S. Brinkworth, M. R. Burleigh, G. A. Wynn +1
GD356 is a magnetic white dwarf (B = 13MG) that uniquely displays weak resolved Zeeman triplets of Halpha and Hbeta in emission. As such, GD356 may be the only known white dwarf wi…
Outbursts of Young Stellar Objects
O. M. Matthews, R. Speith, G. A. Wynn
We argue that the outbursts of the FU Orionis stars occur on timescales which are much longer than expected from the standard disc instability model with α_{c} \gtrsim 10^{-3}. The…
The behaviour of quiescent accretion discs in dwarf novae
M. R. Truss, G. A. Wynn, P. J. Wheatley
We propose a simple explanation for the constant mean brightness observed between outbursts in dwarf novae. Secular changes in the total energy dissipation rate of the accretion di…