Fig. 8.

Spitzer 3.6 μm IRAC image of A370 overlaid with the GMRT 325 MHz radio contours. The beam size is 11.9″ × 8.6″. Contour levels are drawn at [1, 2, 4, 8, 16, 32] × 3σrms, where σrms = 62 μJy beam−1. Compact radio sources are indicated with red labels from A to F. The red circles mark the 1.4 GHz radio source catalog from Wold et al. (2012).
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