Left: CIZA J0649.3+1801 X-ray emission from ROSAT in orange. The original image from the ROSAT All Sky Survey was convolved with a 225″ FWHM Gaussian. Solid contours are from the GMRT 610 MHz image convolved to a resolution of 25″ and drawn at levels of  [1,2,4,8,...]  × 4σ_rms. The source NVSS J064928+175700 was removed using the “peeling”-method (e.g., Noordam 2004). Black dotted lines indicate the integration area for the flux measurement. Discrete sources embedded in the diffuse emission are alphabetically labeled, see Table 3. Right: CIZA J0649.3+1801 GMRT 241 MHz image. Contour levels are drawn as in Fig. 1. The dashed line is the 15 mJy beam^-1contour of the 241 MHz images convolved to a circular beam of 45″.