A note on the snow line in protostellar accretion disks

被引：52

作者：

Podolak, M ^{[1
]}

Zucker, S ^{[1
]}

机构：

[1] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Dept Geophys & Planetary Sci, IL-69978 Tel Aviv, Israel

来源：

METEORITICS & PLANETARY SCIENCE | 2004年 / 39卷 / 11期

关键词：

D O I：

10.1111/j.1945-5100.2004.tb00081.x

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The temperature of ice grains in a protostellar disk is computed for a series of disk models. The region of stability against sublimation is calculated for small ice grains composed of either pure ice or "dirty" ice. We show that in the optically thin photosphere of the disk the gas temperature must be around 145 K for ice grains to be stable. This is much lower than the temperature of 170 K that is usually assumed.

引用

页码：1859 / 1868

页数：10

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