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19962024
most citedResolution of Distance Ambiguities of Inner Galaxy Massive Star Formation Regions II

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astro-ph1997★ 42 cited

Direct Observations of the Ionizing Star in the UC HII Region G29.96-0.02: A Strong Constraint on the Stellar Birth Line for Massive Stars

Alan M. Watson, Alison L. Coil, Debra S. Shepherd +2

We have observed the ultracompact HII region G29.96-0.02 in the near infrared J, H, and K bands and in the Br-gamma line. By comparison with radio observations, we determine that t…