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Interpretation of Isotopic Abundances in Interstellar Clouds

Published online by Cambridge University Press:  14 August 2015

Michel Guélin  and
James Lequeux
Michel Guélin
Affiliation:
Département de Radioastronomie Observatoire de Paris
James Lequeux
Affiliation:
Département de Radioastronomie Observatoire de Paris

Extract

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The abundances of elements in the interstellar medium (ISM) result from a complex sequence of nucleosynthetic processes which started some ten billion years ago in the Big Bang and are still going on. Their study and in particular their comparison with the stellar and the solar system abundances may give clues to: i) the properties of the early Universe, ii) the evolution of galaxies (rate of star formation, Initial Mass Function of stars, stellar nucleosynthesis and rate of ejection of matter by stars), and iii) the flux of low-energy cosmic rays. (See e.g. Reeves 1974, Audouze and Tinsley 1976).

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 87: Interstellar Molecules , 1980 , pp. 427 - 438
Copyright
Copyright © Reidel 1980 

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