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Insights into Globular Clusters and Bulge Field Stars with MOOG

Presentation #217.01 in the session 50 years of Spectrum Synthesis with MOOG I.

Published onJul 01, 2023
Insights into Globular Clusters and Bulge Field Stars with MOOG

In recent years, high resolution multi-object spectroscopy has enabled the measurement of detailed chemical compositions for tens to hundreds of thousands of stars in the Milky Way’s oldest stellar populations. Globular clusters and the Galactic bulge have been a particular target of interest, and the accurate spectroscopic abundances can now be correlated with photometric indices that can expand the number of stars with abundance measurements by several orders of magnitude. Underpinning much of this work is the MOOG line analysis code written by Chris Sneden, which has been used to calculate abundances from equivalent widths and spectrum synthesis. In this talk, I will highlight some recent developments in the field of globular cluster and Galactic bulge research that have built off the legacy of MOOG. Additionally, I will touch on some interesting but seldom discussed results from the past that shed light on the chemical evolution of our Galaxy’s oldest stars.

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