7 papers · 1 filter
Variability in the cycle length of the supersoft source RX J0513.9-6951
V. Burwitz, K. Reinsch, J. Greiner +4
The supersoft X-ray binary RX J0513.9-6951 shows cyclic changes between optical-low / X-ray-on states and optical-high / X-ray-off states. It is supposed to be accreting close to t…
A self-regulating braking mechanism in black hole X-ray binaries
Friedrich Meyer, Emmi Meyer-Hofmeister
The outbursts of black hole X-ray transients can be understood as caused by a limit cycle instability in the accretion disk, similar to dwarf nova outbursts. For adequately low mas…
Evaporation: The change from accretion via a thin disk to a coronal flow
Friedrich Meyer, Bifang Liu, Emmi Meyer-Hofmeister
We present a model for a corona above a geometrically thin standard disk around a black hole. This corona is fed by matter from the thin disk which evaporates from the cool layers…
A limit for the mass transfer rate in soft X-ray transients
E. Meyer-Hofmeister, F. Meyer
Many black hole X-ray transients are in a low state for several decades until an outburst occurs. We interpret this outburst behaviour as a marginal occurrence of a dwarf nova type…
Black hole soft X-ray transients: evolution of the cool disk and mass supply for the ADAF
E. Meyer-Hofmeister, F. Meyer
Using the black hole transient X-ray source A0620-00 as an example we study the physical interplay of three theoretical constituents for modelling these transient sources: (1) the…
On the ultimate fate of AM Her stars
F. Meyer, E. Meyer-Hofmeister
We suggest, that the magnetic field of the white dwarf in AM Her systems loses coupling to the secondary star when the latter becomes non-magnetic at the transition from a late mai…