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| Paper: |
Optically Thin versus Optically Thick Ultracompact HII Regions: A Comparative Study |
| Volume: |
267, Hot Star Workshop III: the Earliest Stages of Massive Star Birth |
| Page: |
339 |
| Authors: |
Barbosa, C. L.; Damineli, A. |
| Abstract: |
The ultracompact (UC) HII regions are classified as optically thin or optically thick at radio wavelengths depending on the flatness of the spectral energy distribution at long wavelengths. We present a comparative study between the two classes that we made reviewing their near-infrared properties, taken from the literature. |
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