Images of H2 (panel a) and FeII (panel b) from Alonso-Herrero et al. (2000). H2 is represented in linear scale, while FeII is in logarithmic scale. The H2 image is blanked in the left and upper regions since those regions were not covered by NICMOS observations. The composite RGB image (panel c) of the same region of Arp 299-A H2 and FeII, and the LOFAR image at 150 MHz, in red, green and blue, respectively.
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