Internal shock model for the radio emission of Microquasars

The superluminal radio components observed in microquasars are usually interpreted as individual ejection events. We discuss some of the shortcomings of this model and propose the internal shock model in quasi-continuous relativistic jets as an alternative. This model can resolve the problems with the single ejection model and is in agreement with radio observations. We outline some further testable model predictions some of which are already confirmed by observations