NDLI: THE NATURE AND EVOLUTION OF INTERSTELLAR ICES

Content Provider	Springer Nature Link
Author	Chiar, JEAN E.
Copyright Year	1997
Abstract	The evolution of icy grain mantles is governed by the environment in which they exist. This review presents an overview of the study of the molecules that make up the mantles and discusses their relevance to the origin of life. Models predict two phases of mantle growth during cloud collapse: simple polar and nonpolar molecules dominate the mantle layers at early and late times, respectively (Section 1). The effect of processing on grain mantle composition and the connection between organics in grain mantles and prebiotic chemistry is introduced. Section 2 describes how infrared spectroscopy of dense cloud sources, combined with theoretical models and laboratory data, gives us information on the composition and abundance of the ices in varying regions. The observed features and how they are used as diagnostics of mantle evolution are discussed in Section 3. This section also discusses the importance of these molecules to prebiotic chemistry. Section 4 compares grain mantle composition in different low-mass star forming regions, which best represent the solar birthplace. The final section (Section 5) summarizes the information presented, emphasizing the link between the study of interstellar dust and the origin of life.
Starting Page	79
Ending Page	100
Page Count	22
File Format	PDF
ISSN	01696149
Journal	Origins of Life and Evolution of Biospheres
Volume Number	27
Issue Number	1-3
e-ISSN	15730875
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	1997-01-01
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	Organic Chemistry Geochemistry Biochemistry
Content Type	Text
Resource Type	Article
Subject	Medicine Ecology, Evolution, Behavior and Systematics Space and Planetary Science

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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