Gas phase diagnostics of protoplanetary disc extension
Gas phase diagnostics of protoplanetary disc extension
复制标题
原行星盘延伸的气相诊断
DOI：
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复制
发表时间：
2008
期刊：
影响因子：
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通讯作者：
C. Clarke
中科院分区：
文献类型：
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作者：
B. Ercolano;J. Drake;C. Clarke
目标。我们研究了利用原子碳的精细结构比和近红外禁线跃迁来诊断原行星盘扩展的潜力。方法。利用二维光电离和辐射转移建模的结果，我们得到了一个现实的原行星盘结构，由金牛座T星的x射线照射，我们从理论上的发射图，我们构建了最强的发射线的径向分布。结果。我们发现，精细结构与原子碳近红外禁线发射的比值特别有希望限制气态原行星盘的最小尺寸。虽然理论上可行，但该方法提出了一些观测困难，这里也将加以讨论。
Aims. We investigate the potential of using ratios of fine structure and near-infrared forbidden-line transitions of atomic carbon to diagnose protoplanetary disc extension. Methods. Using results from 2D photoionisation and radiative transfer modelling of a realistic protoplanetary disc structure irradiated by X-rays from a T Tauri star, we obtain theoretical emission maps from which we construct radial distributions of the strongest emission lines produced in the disc. Results. We show that ratios of fine structure to near-infrared forbidden-line emission of atomic carbon are especially promising for constraining the minimum size of gaseous protoplanetary discs. While theoretically viable, the method presents a number of observational difficulties that are also discussed here.
DOI：
10.1111/j.1365-2966.2006.11336.x
发表时间：
2006-11
影响因子：
4.8
作者：
B. Ercolano;M. Barlow;B. Sugerman
通讯作者：
B. Ercolano;M. Barlow;B. Sugerman