Variable and transient sources with the Wide Field X-ray Telescope

The Wide Field X-ray Telescope (WFXT) is a proposed mission with a high survey speed, due to the combination of large eld of view (FOV) and large eective area, i.e., grasp, and sharp PSF across the whole FOV. These characteristics make it suitable to detect a large number of variable and transient X-ray sources during it operating lifetime, allowing to constrain the rates and properties of distant, faint and rare populations such as X-ray Flashes/faint GRBs, Tidal Disruption Events, ULXs, Type-I bursts etc.