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A rotating disk around the very young massive star AFGL 490

K. Schreyer·D. Semenov·Th. Henning·J. Forbrich
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Abstract

We observed the embedded, young 8--10 Msun star AFGL 490 at subarcsecond resolution with the Plateau de Bure Interferometer in the C17O (2--1) transition and found convincing evidence that AFGL 490 is surrounded by a rotating disk. Using two-dimensional modeling of the physical and chemical disk structure coupled to line radiative transfer, we constrain its basic parameters. We obtain a relatively high disk mass of 1 Msun and a radius of ~ 1500 AU. A plausible explanation for the apparent asymmetry of the disk morphology is given.

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K. Schreyer, D. Semenov, Th. Henning, J. Forbrich. 2006-01-12. A rotating disk around the very young massive star AFGL 490. https://doi.org/10.1086/500732

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