原始星云中气相 CO: 湍流混合的挑战
天体物理学
2009-11-11 v1
摘要
This is the first paper in a series where we study the influence of turbulent diffusion and advective transport on the chemical evolution of protoplanetary disks, using a 2D flared disk model and a 2D mixing gas-grain chemical code with surface reactions. A first interesting result concerns the abundance of gas-phase CO in the outer regions of protoplanetary disks. In this Letter we argue that the gas-phase CO concentration in the disk regions, where the temperature is lower than K, can be significantly enhanced due to the combined effect of vertical and radial mixing. This finding has a potential implication for the current observational data on the DM~Tau disk chemistry.
引用
@article{arxiv.astro-ph/0607010,
title = {Gas-phase CO in protoplanetary disks: a challenge for turbulent mixing},
author = {D. Semenov and D. Wiebe and Th. Henning},
journal= {arXiv preprint arXiv:astro-ph/0607010},
year = {2009}
}
备注
ApJL, accepted