Effects of main-sequence mass loss on stellar and galactic chemical evolution
1989
Abstract
Iowa State faculty members L.A. Willson, G.H. Bowen and C. Struck-Marcell have proposed that stars of 1 to 3 solar masses may experience mass loss of evolutionary significance during the early part of their lives on the main sequence. The suggested mass-loss mechanism is pulsation, facilitated by rapid rotation. Initial mass-loss rates may be as large as several times 10/sup /minus/9/ M/sub o//yr, diminishing during the first several times 10/sup 8/ years. The goal of this dissertation is to test the main-sequence mass loss hypothesis via a comparison of theoretical implications to observations. Three specific areas are addressed: Solar models, cluster HR diagrams, and galactic chemical evolution. 176 refs., 41 figs., 12 tabs.
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