Fluorine Abundance Variations as a Signature of Enhanced Extra Mixing in Red Giants of the Globular Cluster M4

2006/04/24 by Pavel A. Denissenkov, Marc Pinsonneault, Donald M. Terndrup · 2 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics and Star Formation Studies #Stellar, planetary, and galactic studies #astro-ph

paper · pdf · doi:10.1086/507512

published as Astrophys.J.651:438-443,2006 · 17 pages, 6 figures, submitted to ApJ

arxiv created 2006/04/24 · openalex publication_date 2006/10/27 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31

Abstract

We show that enhanced extra mixing in low-mass red giants can result in a fluorine abundance that is correlated with abundance variations of other elements participating in H burning, such as C, N, O, and Na. This finding is used to explain the fluorine abundance variations recently found in bright red giants of the globular cluster M4.

Citations

• Abundance Variations within Globular Clusters

Cited by

• The self-enrichment scenario in intermediate metallicity globular clusters
• A model for globular cluster extreme anomalies