作者: Claudine Kahane,
期刊: AIP Conference Proceedings (AIP Available online 1995) 卷期: Volume 327, issue 1
页码: 19-30
ISSN:0094-243X
年代: 1995
DOI:10.1063/1.47395
出版商: AIP
数据来源: AIP
摘要:
This talk reviews the measurements of isotopic abundances in the galactic and extragalactic interstellar medium and in the circumstellar envelopes, based on radio molecular lines observations. The derivation of isotopic abundance ratios from molecular lines is discussed in terms of accuracy and reliability. The observational data are compared with theoretical results on galactic chemical evolution and stellar processing. ©1995 American Institute of Physics.
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