COMET HALLEY AS AN AGGREGATE OF INTERSTELLAR DUST AND FURTHER EVIDENCE FOR THE PHOTOCHEMICAL FORMATION OF ORGANICS IN THE INTERSTELLAR-MEDIUM

被引：156

作者：

BRIGGS, R

ERTEM, G

FERRIS, JP

GREENBERG, JM

MCCAIN, PJ

MENDOZAGOMEZ, CX

SCHUTTE, W

机构：

[1] RENSSELAER POLYTECH INST,DEPT CHEM,TROY,NY 12180

[2] LEIDEN UNIV,HUYGENS LAB,ASTROPHYS LAB,2300 RA LEIDEN,NETHERLANDS

来源：

ORIGINS OF LIFE AND EVOLUTION OF THE BIOSPHERE | 1992年 / 22卷 / 05期

关键词：

D O I：

10.1007/BF01810858

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Photolysis of mixtures of CO:NH3:H2O at 12 K results in the formation of an organic residue which is not volatile in high vacuum at room temperature. Analysis of this fraction by GC-MS resulted in the detection of C2-C3 hydroxy acids and hydroxy amides, glycerol, urea, glycine, hexamethylene tetramine, formamidine and ethanolamine. Use of isotopically labeled gases made it possible to establish that the observed products were not contaminants. The reaction pathways for the formation of these products were determined from the position of the isotopic labels in the mass spectral fragments. The significance of these findings to the composition of comets and the origins of life is discussed.

引用

页码：287 / 307

页数：21

共 76 条

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