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arxiv: astro-ph/0601270 · v1 · submitted 2006-01-12 · 🌌 astro-ph

A rotating disk around the very young massive star AFGL 490

K. Schreyer , D. Semenov , Th. Henning , J. Forbrich This is my paper
classification 🌌 astro-ph
keywords diskafglmsunrotatingstaryoungapparentaround
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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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  1. GeV {\gamma}-ray emission in the low-mass star-forming region AFGL 490

    astro-ph.HE 2026-05 unverdicted novelty 6.0

    Discovery of extended GeV gamma-ray emission from AFGL 490, with the protostellar jet identified as the likely particle accelerator rather than stellar winds.