Journal
ASTROPHYSICAL JOURNAL
Volume 814, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0004-637X/814/2/142
Keywords
globular clusters: general; methods: statistical; stars: evolution
Categories
Funding
- National Science Foundation [AST-1211384]
- Division Of Astronomical Sciences
- Direct For Mathematical & Physical Scien [1211384] Funding Source: National Science Foundation
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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 a capture [alpha/Fe] = +0.4 and an age of 13 Gyr shows agreement with observations over metallicities ranging from [Fe/H] = 0 to [Fe/H] approximate to -1.5, with discrepancy emerging at lower metallicities.
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