  In neutron star and black hole X-ray binaries the transitions between the two
spectral states, hard and soft, signals the change between accretion via a hot
advection-dominated flow(ADAF) and disk accretion. In a few cases the hard/soft
transition were observed during the rise to the nova outburst, mostly only the
soft/hard transition during the luminosity decrease. Surprisingly the
luminosities at the second transition is always lower by a factor of 3 to 5. A
model for this hysteresis was presented in a preceding paper: It was shown that
this switch in the accretion mode at different mass accretion rates and
therefore different luminosities is caused by the different amount of Compton
cooling or heating of the accretion disk corona as it is irradiated by hard or
soft radiation from the central light source, respectively. We now give
detailed results on the dependence on hardness of this radiation and on
radiation efficiency. We further discuss the influence of the inclination and a
possible warping of the disk on the observed hysteresis.
