Evidence for C, O, Al and Mg variations in the GD-1 stellar stream
Eduardo Balbinot,
Ivan Cabrera-Ziri,
Carmela Lardo
Abstract:Dynamically cold stellar streams are the relics left over from globular cluster dissolution. These relics offer a unique insight into a now fully disrupted population of ancient clusters in our Galaxy. Using a combination of Gaia eDR3 proper motions, optical and near-UV colours we select a sample of likely Red Giant Branch stars from the GD-1 stream for medium-low resolution spectroscopic follow-up. Based on radial velocity and metallicity, we are able to find 14 new members of GD-1, 5 of which are associated … Show more
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