Abstract
The group of radio sources near the optical object K3–50 has been observed at 5 GHz with the Cambridge 5-km telescope. Two of the sources contain high-density compact structure, and the one coincident with K3–50 itself has an unusually high brightness temperature. The new radio data are compared with infrared and optical observations of these sources and the anomalous extinction is discussed in terms of a scattering model.

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