Speaker
Description
The origin of multiple populations in globular clusters is very much an open question today. In part, this is an issue of observational data: Small studies vary strongly in method, making it difficult to compare their results, while large-scale spectroscopic survey pipelines are unreliable for chemically peculiar stars. Thus, there is simply not enough reliable data to check theories against. We aim to solve this by performing a homogeneous re-analysis of more than 5000 APOGEE spectra of globular cluster stars with the high precision and accuracy of a "manual" approach. We derive stellar parameters and chemical abundances through spectral synthesis fitting using PySME and individually inspect each spectrum to ensure reliable results. We will present our work-in-progress results, showing preliminary stellar parameters and abundance trends for some representative globular clusters.