Effelsberg total intensity radio images. Left panel: Effelsberg 2640 MHz total intensity radio image in color scale and black contours drawn at [–1, 1, 2, 4, 8, 16] × 3σ, with 3σ = 4 × 10^-3 Jy/beam. The beam size is . Right panel: Effelsberg 4850 MHz total intensity radio image in color scale and black contours drawn at [–1, 1, 2, 4, 8] × 3σ, with 3σ = 1.86 × 10^-3 Jy/beam. The beam size is . In both panels the blue contours are from the WSRT 2273 MHz radio image not corrected for the primary beam attenuation and are drawn at [ 1, 2 ] × 8 × 10^-5 Jy/beam.