  It has been proposed that an intermediate mass black hole can produce compact
molecular clouds with large velocity dispersions. This model is called into
question due to the discovery of several such short lived clouds, which
suggests they are common, and hence it is unlikely that their formation
involves an exotic object such as an intermediate mass black hole. In this
paper we propose an alternative model, where supernovae produce such clouds. We
apply our model to a such a cloud called CO-0.40-0.22. A previous work pointed
out the fact that the kinetic energy of this cloud is comparable to that from a
supernova, but disqualified the supernova scenario due to lack of thermal
emission. We explain the lack of thermal emission as a consequence of the large
density of the medium. In such a medium, the supernova shock is radiation
dominated, and hence the initial temperatures are lower by many orders of
magnitude compared with a typical supernova. Finally, we discuss some of the
consequences of having a significant population of intermediate mass black
holes in the galactic centre.
