A rotating disk around the very young massive star AFGL 490
arXiv:astro-ph/0601270 · doi:10.1086/500732
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.
4 pages, 5 figures
References in corpus (8)
- Flaring vs. self-shadowed disks: the SEDs of Herbig Ae/Be stars
- On the formation of massive stars
- Evidence for a Geometrically Thick Self-Gravitating Accretion Disk in NGC 3079
- Centrally condensed turbulent cores: Massive stars or fragmentation?
- Millimeter observations and modeling of the AB Aurigae system
- Evolution of self-gravitating magnetized disks. II- Interaction between MHD turbulence and gravitational instabilities
- Near-IR speckle imaging of massive young stellar objects
- Evolution of self-gravitating magnetized disks. I- Axisymmetric simulations
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