Search for non-thermal X-ray emission in a unique relic radio mini-halo

We propose a 50 ks observation of the galaxy group MRC 0116+111. It is an idealtarget for searching for nonthermal, inverseCompton Xray emission, becauseits ratio of radio to Xray luminosity is > 70 times larger than that of anyother known radio minihalo. Our short snapshot observation with Chandra revealsXray morphology extended along the bright radio outflows. The Xray spectralproperties of the system indicate the presence of an additional nonthermalspectral component. The proposed observation will allow us to disentangle thenonthermal emission from the thermal component and, in combination with theexisting radio data, place strong constraints on the volume averaged magneticfield. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]