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Survey of Some Recent Stellar-Evolution Calculations

Published online by Cambridge University Press:  14 August 2015

Allen V. Sweigart
Allen V. Sweigart*
Affiliation:
NASA Goddard Space Flight Center

Extract

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A basic objective of stellar-evolution theory is to provide detailed quantitative information on the evolutionary characteristics of stars with different compositions and masses. For the evolutionary phases from the zero-age main sequence (ZAMS) through core-helium burning the important physical processes are sufficiently well understood to justify a systematic investigation, and, indeed, extensive grids of evolutionary sequences have been constructed for these phases by many researchers. However, several difficulties are sometimes encountered when using the available calculations. For example, differences in numerical techniques and physical assumptions can give rise to systematic differences among the results of various investigations. Furthermore, the available calculations do not always explore the full ranges of the input parameters, and in some cases they neglect physical effects that are now believed to be important.

Type
Part VII: Theoretical Papers and Summary
Information
Symposium - International Astronomical Union , Volume 80: The HR Diagram , 1978 , pp. 333 - 344
Copyright
Copyright © Reidel 1978 

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