Abstract: | X-ray deficient cavities appear in many X-ray observations of clusters of galaxies. The inflation of such cavities is usually attributed to jets launched from the AGN. In some cases, "chains" of such cavities - multiple cavities appearing on either side of the AGN and which aligned on the same axis, are observed. We present hydrodynamic simulations that indicate that beside the common explanation of multiple jet launching episodes, there is a possibility for one launching episode to create multiple cavities via various vortex fragmentation mechanisms. The simulations, along with the fragmentation mechanisms will be presented and discussed. |