Thermal flares from collapsed accretion disks?

I discuss the possibility of thermal flares resulting from the collapse of the accretion disk in X-ray binaries. I calculate the resulting spectra and lightcurves from blackbody radiation and thermal bremsstrahlung assuming a simple, spherical and homogeneous, wind-like outflow of the collapsed disk matter. The results suggest that if a significant part of the inner accretion disk matter is expelled as a windlike outflow, the radiation from the expanding plasma could indeed be seen as a very fast flare in some sources. In particular, the model could help in understanding the soft-X-ray spikes during the X-ray dip phase and preceding the radio flares in GRS 1915+105.