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Fig. 4
Gray scale representation of the spectral index between 1.4 and 5 GHz with superimposed contours of total intensity. The measurements at the marked locations are summarized in the table.
Spectral index α −0.86 −0.77 −0.29 −0.75 −0.50 −0.42 −0.79 −0.84 −0.88
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