Chandra (0.5−2.0 keV band) X-ray image overlaid with radio contours at 675 MHz, 1.5 GHz, and 3.0 GHz. All radio images are created at a common resolution of 10″. Here, left, middle, and right panels correspond to IM10, IM5, and IM1, respectively. The halo emission is apparently more extended toward low frequencies, in particular to the northeast direction. Contour levels are drawn at [1, 2, 4, 8, …] × 3.5 σ_rms. In all three images there is no region below −3.0 σ_rms. The beam size is indicated in the bottom left corner of the each image.