Carbon-Chain Oxides in Proton-Irradiated CO Ice Films
Carbon-Chain Oxides in Proton-Irradiated CO Ice Films
复制标题
质子辐照 CO 冰膜中的碳链氧化物
DOI：
10.1086/422680
复制
发表时间：
2003
期刊：
影响因子：
--
通讯作者：
R. L. Brooks
中科院分区：
文献类型：
--
作者：
A. Trottier;R. L. Brooks
在H2和水之后，CO和CO2是恒星和星际环境中最常见的分子。它们通常是彗星和星际尘埃颗粒冰冷地幔的主要组成部分。这些冰幔受到不同程度的宇宙辐射，导致化学变化。本文研究了质子辐照CO薄膜的近红外吸收光谱（1900 ~ 4000 cm-1）。这种薄膜的光谱显示出在CO基元附近出现的几个特征，这些特征归因于碳氧化物，如CnO和CnO2，当n≤7时。碳链在星际环境中的形成机制是很有趣的，因为碳链（或由它们衍生的分子）被认为是一些弥漫星际能带的载体。
After H2 and water, CO and CO2 are the most common molecules in stellar and interstellar environments. They are often dominant components in icy mantles of comets and interstellar dust grains. These ice mantles are subject to a varying degree of cosmic radiation, leading to chemical alterations. This paper presents a study of the near-IR absorption spectrum (1900-4000 cm-1) of proton-irradiated CO thin films. The spectra of such films display several features arising in the vicinity of the CO fundamental that are attributed to carbon oxides such as CnO and CnO2 for n ≤ 7. The formation mechanisms of carbon chains in interstellar environments are of interest since carbon chains (or molecules derived from them) have been considered to be carriers of some of the diffuse interstellar bands.