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Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/4127
Title: Chemical evolution coefficients for the study of galactic evolution
Authors: Mallik, D. C. V
Keywords: Chemical Evolution
Galactic Evolution
Interstellar Chemistry
Nuclear Fusion
Stellar Evolution
Stellar Mass Ejection
Abundance
Astronomical Models
Stellar Structure
Issue Date: May-1981
Publisher: D.Reidel Publishing Co.,
Citation: Astrophysics and Space Science, Vol. 69, No. 1, pp. 133 - 145
Abstract: A new evaluation of chemical evolution coefficients has been made using recent stellar evolution and nucleosynthesis data. The role of the low and intermediate mass stars in galactic nucleosynthesis has been emphasized. A significant amount of He-4, C-12 and neutron-rich species is found to be contributed by these stars. Comparison with observed abundances suggests a primary origin of N-14. The simple model of galactic evolution with the new coefficients has been used to derive the ratio of helium to heavy element enrichment in the Galaxy. The new stellar evolution data do not explain the large value of this ratio that has been determined observationally.
Description: Open Access
URI: http://hdl.handle.net/2248/4127
ISSN: 0004-640X
Appears in Collections:IIAP Publications

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