INTERSTELLAR ALCOHOLS

被引：193

作者：

CHARNLEY, SB

KRESS, ME

TIELENS, AGGM

MILLAR, TJ

机构：

[1] NASA,AMES RES CTR,DIV SPACE SCI,MOFFETT FIELD,CA 94035

[2] UNIV MANCHESTER,INST SCI & TECHNOL,DEPT MATH,MANCHESTER M60 1QD,LANCS,ENGLAND

[3] RENSSELAER POLYTECH INST,DEPT PHYS,TROY,NY 12180

来源：

ASTROPHYSICAL JOURNAL | 1995年 / 448卷 / 01期

关键词：

ISM; ABUNDANCES; CLOUDS; MOLECULES; MOLECULAR PROCESSES;

D O I：

10.1086/175955

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have investigated the gas-phase chemistry in dense cores where ice mantles containing ethanol and other alcohols have been evaporated. Model calculations show that methanol, ethanol propanol, and butanol drive a chemistry leading to the formation of several large ethers and esters. Of these molecules, methyl ethyl ether (CH3OC2H5) and diethyl ether [(C2H5)(2)O] attain the highest abundances and should be present in detectable quantities within cores rich in ethanol and methanol. Gas-phase reactions act to destroy evaporated ethanol and a low observed abundance of gas-phase C2H5OH does not rule out a high solid-phase abundance. Grain surface formation mechanisms and other possible gas-phase reactions driven by alcohols are discussed, as are observing strategies for the detection of these large interstellar molecules.

引用

页码：232 / 239

页数：8