G11.92-0.61 MM1: A Keplerian disc around a massive young proto-O star
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Abstract
The formation process of massive stars is not well understood, and
advancement in our understanding benefits from high resolution observations and
modelling of the gas and dust surrounding individual high-mass (proto)stars.
Here we report sub-arcsecond (<1550 au) resolution observations of the young
massive star G11.92-0.61 MM1 with the SMA and VLA. Our 1.3 mm SMA observations
reveal consistent velocity gradients in compact molecular line emission from
species such as CH
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1365-2966