Accurate physical parameters of newborn massive stars are essential ingredients to shed light on their formation, which is still an unsolved problem. The rare class of compact H II regions in the Magellanic Clouds (MCs), termed "high-excitation blobs" (HEBs), presents a unique opportunity to acquire this information. These objects (4" to 10", ～1 to 3 pc, in diameter) harbor the youngest massive stars of the OB association/molecular cloud complexes in the MCs accessible through high-resolution near-IR and optical techniques. We present a brief overview of the results obtained with HST mainly on two HEBs, one in the LMC (N159-5) and the other in the SMC (N81).
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机译：新生儿大规模恒星的准确物理参数是在其形成上揭示光的必要成分，这仍然是一个未解决的问题。 Magellanic云（MCS）中珍贵的Compact H II区域，称为“高励磁Blob”（HEBS），呈现出获取此信息的独特机会。这些物体（4“至10”，〜1到3 PC，直径）通过高分辨率接近IR和光学技术来覆盖OB关联/分子云复合物的最小巨大恒星。我们简要概述了HST主要在两个HEBS中获得的结果，其中一个在LMC（N159-5）中，另一个在SMC（N81）中。
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