Lecture 19 Pair Instability Supernovae and Population III. Mass Loss in Very Massive Primordial Stars. Negligible line-driven winds (mass loss ~ metallicity 1/2 ) (Kudritzki 2002) No opacity-driven pulsations (no metals ) Continuum-driven winds likely small contribution - PowerPoint PPT Presentation
Citation preview
Lecture 19
Pair Instability SupernovaeandPopulation III
Mass Loss in Very Massive Primordial StarsNegligible line-driven
winds (mass loss ~ metallicity1/2) (Kudritzki 2002)No
opacity-driven pulsations (no metals)Continuum-driven winds likely
small contributionEpsilon mechanism inefficient in metal-free stars
below ~1000 M (Baraffe, Heger & Woosley 2000) from pulsational
analysis we estimate upper limits:120solar masses:
