A strict correlation exists in low power radio galaxies between the accretion power, related to the hot interstellar medium, and the kinetic energy of relativistic jets. This relation holds over 4 decades, with an almost constant fraction of accretion energy converted into mechanical power. From the properties of a selected sample of radio galaxies belonging to the Virgo cluster we see if the intracluster environment may affect the accretion/ejection mechanisms down to very faint radio galaxies.
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