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Chandra images show symmetric, 8 kpc long, arm-like features in the X-rayhalo surrounding NGC 4636. The leading edges of these features are sharp andare accompanied by temperature increases of ~30%. These properties, along withtheir scale and symmetry, suggest that the arm-like structures are produced bynuclear outburst driven shocks. We interpret these observations as part of acycle in which cooling gas originally fueled a nuclear outburst about 3 X10^{6} years ago leading to shocks that reheat the cooling gas, thus preventingthe accumulation of significant amounts of cooled gas in the galaxy center andtemporarily starving the central AGN.Comment: submitted to ApJ Letter

Chandra Observations of NGC 4636--an Elliptical Galaxy in Turmoil