Energetic and thermal processing of interstellar ices

被引：34

作者：

Ehrenfreund, P

d'Hendecourt, L

Charnley, S

Ruiterkamp, R

机构：

[1] Leiden Observ, Raymond & Beverly Sackler Lab Astrophys, NL-2300 RA Leiden, Netherlands

[2] Univ Paris 11, CNRS, Inst Astrophys Spatiale, F-91405 Orsay, France

[3] NASA, Ames Res Ctr, Div Space Sci, Planetary Syst Branch, Moffett Field, CA 94035 USA

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS | 2001年 / 106卷 / E12期

关键词：

D O I：

10.1029/2000JE001349

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：

Our current knowledge on the chemical composition of interstellar ices is summarized with respect to the possible contribution of energetic photons and particles to their observed state. We describe the inventory of astronomical ices as determined by infrared observations from the Infrared Space Observatory (ISO) and laboratory spectroscopy. Sources of radiolysis, UV photolysis, and ice heating are then discussed in the context of the chemical state of material in dense molecular clouds and in protostellar cores. Through specific examples we show how energetic processing can explain the observed solid-state characteristics of several key molecules: CH3OH, CO2, and OCN-. We also discuss the gaseous and solid-state photochemistry of the first organic acid detected in interstellar ices, HCOOH.

引用

页码：33291 / 33301

页数：11

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