Abstract
We present new infrared observations of the low-metallicity blue compact galaxy SBS 0335-052. We find that the NIR emission is consistent with star formation occurring in clusters younger than 5 Myr. We detect optically hidden star formation at 4 μm obscured by more than 15 mag. of visual extinction. We quantify the possible contribution from an evolved stellar population and from warm dust. We finally discuss the possible origin of the dust observed.
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