Lithium abundances through distinct stellar populations in Omega Centauri

Sammanfattning: The renowned Omega Centauri (NGC 5139) is one of the most massive and complex known globular clusters in terms of multiple populations. In this project, we aim to investigate the chemical abundance of lithium in RBG stars in this cluster in pursuit of unraveling the that govern the formation of these distinct populations. By analyzing spectroscopic and photometric data, we determine the necessary stellar parameters and produce an algorithm that yields the Li abundance for each star, as well as its errors and an upper limit for the content of this element. This is followed by a comparison with the results obtained in Mucciarelli et al.(2018). Finally, we investigate how Li behaves within the different stellar populations of Omega Centauri using data from Milone et al. (2017a).