Document Type
Article
Publication Date
11-30-2015
Publication Title
The Astrophysical Journal
Department
Department of Physics and Astronomy
Abstract
Synthetic Red Giant Branch Bump (RGBB) magnitudes are generated with the most recent theoretical stellar evolution models computed with the Dartmouth Stellar Evolution Program (DSEP) code. They are compared to the observational work of Nataf et al., who present RGBB magnitudes for 72 globular clusters. A DSEP model using a chemical composition with enhanced α capture [α/Fe] = +0.4 and an age of 13 Gyr shows agreement with observations over metallicities ranging from [Fe/H] = 0 to [Fe/H] ≈ −1.5, with discrepancy emerging at lower metallicities.
DOI
10.1088/0004-637X/814/2/142
Dartmouth Digital Commons Citation
Joyce, M. and Chaboyer, B., "Investigating the Consistency of Stellar Evolution Models with Globular Cluster Observations via the Red Giant Branch Bump" (2015). Dartmouth Scholarship. 2160.
https://digitalcommons.dartmouth.edu/facoa/2160
