Population nucleosynthesis in single and binary stars I. Model
Date
2006
Authors
Izzard, R G
Dray, L M
Karakas, Amanda
Lugaro, Maria A
Tout, Christopher A
Journal Title
Journal ISSN
Volume Title
Publisher
Springer
Abstract
We present a synthetic algorithm to rapidly calculate nucleosynthetic yields from populations of single and binary stars for use in population synthesis, globular cluster and Galactic chemical evolution simulations. Single star nucleosynthesis is fitted directly to full evolution models and our model includes first, second and third dredge-ups with s-process enhancements, an analytic calculation for hot-bottom burning of CNO, NeNa and MgAl isotopes, surface enhancements due to wind loss in massive stars and core-collapse supernova yields. Even though this algorithm operates about 107 times faster than full evolution and nucleosynthesis calculations, agreement with such models is good. We extend the single star model to include prescriptions of binary star interactions, notably mass loss and gain by stellar winds and Roche-lobe overflow, novae and type la supernovae. As examples of the application of our algorithm we present models of some interesting systems containing chemically peculiar stars that may occur in binaries.
Description
Keywords
Keywords: Algorithms; Galaxies; Isotopes; Magnesium compounds; Mathematical models; Population statistics; Binary stars; Massive stars; Stars: abundances; Stellar winds; Astrophysics Stars: abundances; Stars: AGB and post-AGB; Stars: binaries: general; Stars: carbon stars: Wolf-Rayet; Stars: chemically peculiar
Citation
Collections
Source
Astronomy and Astrophysics
Type
Journal article
Book Title
Entity type
Access Statement
License Rights
Restricted until
2037-12-31
Downloads
File
Description