Fig. 4
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LOFAR 148 MHz continuum emission of the 4° × 4° (~100 pc × 100 pc) area in the Cygnus X region that we analyze at 2′ (0.9 pc) resolution. The emission in this region is primarily thermal, free-free emission from low-density photoionized gas. A number of extragalactic radio sources are present as bright point sources. The noise away from bright emission is σ = 5 mJy beairr−1.
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