Reaction rate uncertainties and the operation of the NeNa and MgAl chains during HBB in intermediate-mass AGB stars

2007/02/12 by R. G. Izzard, M. Lugaro, A. I. Karakas +2 · 2 citations
Physics and Astronomy · #Astro and Planetary Science #Astronomy and Astrophysical Research #Stellar, planetary, and galactic studies #astro-ph

paper · pdf · doi:10.1051/0004-6361:20066903

accepted for publication on Astronomy & Astrophysics

openalex publication_date 2007/02/12 · arxiv created 2007/03/05 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31

Abstract

Context.We test the effect of proton-capture reaction rate uncertainties on the abundances of the Ne, Na, Mg and Al isotopes processed by the NeNa and MgAl chains during hot bottom burning (HBB) in asymptotic giant branch (AGB) stars of intermediate mass between 4 and 6 and metallicities between and 0.02.

Citations

• Does the oxygen-sodium anticorrelation in globular clusters require a lowering of the \mathsf²³Na(p,\mathsfα)²⁰Ne reaction rate?
• On the asymptotic giant branch star origin of peculiar spinel grain OC2
• Evolution of Asymptotic Giant Branch Stars
• A compilation of charged-particle induced thermonuclear reaction rates
• First stars VI – Abundances of C, N, O, Li, and mixing in extremely metal-poor giants. Galactic evolution of the light elements
• Abundance Variations within Globular Clusters

Cited by

• A LARGE C+N+O ABUNDANCE SPREAD IN GIANT STARS OF THE GLOBULAR CLUSTER NGC 1851
• Chemical Abundances in Giant Stars of the Tidally Disrupted Globular Cluster NGC 6712 from High‐Resolution Infrared Spectroscopy