Formation of Amorphous H2O Ice from the Reactions of Cold H Atoms with Solid O2 at 10 K

被引：0

作者：

Kouchi, A. ^{[1
]}

Watanabe, N. ^{[1
]}

Hidaka, H. ^{[1
]}

Miyauchi, N. ^{[1
]}

Oba, Y. ^{[1
]}

Chigai, T. ^{[1
]}

机构：

[1] Hokkaido Univ, Inst Low Temp Sci, Sapporo, Hokkaido 0600819, Japan

来源：

COSMIC DUST - NEAR AND FAR | 2009年 / 414卷

关键词：

EFFECTIVE RATE CONSTANTS; SURFACE-REACTIONS; HYDROGEN-ATOMS; CHEMISTRY; MANTLES; CLOUDS; OXYGEN; WATER;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

To discuss the formation of water molecule by surface atomic reactions involving H and O atoms in molecular clouds, the reaction of cold H atoms with solid O-2 molecules were investigated experimentally at 10 K We found using in situ infrared spectroscopy that the reaction proceeds very efficiently to produce H2O Based on the reaction rates obtained, we discuss the reaction mechanisms Furthermore, we clarified that the structure of water ice produced is amorphous, which is consistent with the astronomical observation

引用

页码：338 / 346

页数：9

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