Abstract
G192.16-3.82 (G192) is a massive protostellar object with an energetic outflow. It is one of only a few massive protostars with evidence of a circumstellar accretion disk. New high-resolution K'-band images of G192 show a 2.1 μm source near the radio-detected compact H II region. The source is very red (not detected at the H band), and neither ionized gas (Brγ emission) nor shocked gas (H2 emission) contributes strongly to the K-band emission. If the 2.1 μm source is the extincted protostellar photosphere, then the circumstellar disk may have a central hole and/or a small scale height.
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