We present a detailed analysis of a new XMM-Newton observation of the FRII radio galaxy 3C 452 and its environment .
We detect X-ray emission from the hot intragroup medium and measure its temperature as well as obtaining the surface brightness and pressure profiles .
We provide evidence that 3C 452 is currently heating its environment , measuring a temperature of 1.18 \pm 0.11 keV for the immediate environment of the radio source compared to 0.86 ^ { +0.13 } _ { -0.05 } keV for the outer environment ) .
We also present evidence that the outer regions of the lobes are overpressured ( internal pressure of 2.6 \times 10 ^ { -13 } Pa and external pressure of 1.11 \pm { 0.11 } \times 10 ^ { -13 } Pa at the edge of the lobes ) and therefore are driving a shock at the lobe edges ( with a temperature which we constrain to be 1.7 ^ { +0.9 } _ { -0.5 } keV ) , while the inner regions of the lobes are underpressured and contracting .
Taking into account the very large amount of energy stored in the lobes , we show that this relatively low-powered FRII radio galaxy will have an extremely significant impact on its group environment .