SIMBAD references

2007ApJ...656L..81N - Astrophys. J., 656, L81-L84 (2007/February-3)

The morphology of M17-UC1: a disk candidate surrounding a hypercompact H II region.

NIELBOCK M., CHINI R., HOFFMEISTER V.H., SCHEYDA C.M., STEINACKER J., NURNBERGER D. and SIEBENMORGEN R.

Abstract (from CDS):

We investigate the morphology and the evolutionary stage of the hypercompact H II region M17-UC1 using observations at infrared wavelengths and NIR radiative transfer modeling. For the first time, this region is resolved into two emission areas separated by a dark lane reminiscent of an obscuring silhouette caused by a circumstellar disk. So far, the observational data as well as model calculations suggest that M17-UC1 is surrounded by a disk of cool dust. This direct detection of a circumstellar disk candidate around a hypercompact H II region is in agreement with the expectations of the disk accretion model for high-mass star formation.

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Journal keyword(s): Stars: Circumstellar Matter - Galaxy: Open Clusters and Associations: General - Galaxy: Open Clusters and Associations: Individual: Messier Number: M17 - Stars: Formation - Stars: Pre-Main-Sequence

Simbad objects: 5

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