Single and binary evolution of Population III stars and their supernova explosions

• Published in: Monthly notices of the Royal Astronomical Society Vol. 384; no. 4; pp. 1533 - 1543
• Main Authors: Lawlor, T. M., Young, T. R., Johnson, T. A., MacDonald, J.
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Publishing Ltd 01-03-2008; Blackwell Science; Oxford University Press
• Subjects: Astronomy; binaries: general; Earth, ocean, space; Exact sciences and technology; Stars & galaxies; stars: evolution; Supernovae; supernovae: general; stars: evolution; supernovae: general; binaries: general; Accretion; Supernovae explosion; Supernovae; Light curves; Stellar abundance; Stellar evolution; M stars; Star models; Heavy element; Solar abundance; Population III; Element abundance; Binary stars
• ISSN: 0035-8711; 1365-2966
• DOI: 10.1111/j.1365-2966.2007.12810.x

We present stellar evolution calculations for Population III stars for both single- and binary-star evolutions. Our models include 10- and 16.5-M⊙ single stars and a 10-M⊙ model star that undergoes an episode of accretion resulting in a final mass of 16.1 M⊙. For comparison, we present the evolution of a solar heavy element abundance model. We use the structure from late-stage evolution models to calculate simulated supernova light curves. Light curve comparisons are made between accretion and non-accretion progenitor models, and models for single-star evolution of comparable masses. Where possible, we make comparisons to previous works. Similar investigations have been carried out, but primarily for solar or near-solar heavy metal abundance stars and not including both the evolution and the supernova explosions in one work.