Lindsay 113, a roughly 4 billion year old, 23,000 solar mass cluster, shows no detectable nitrogen spread among red giants, so its red-giant branch width is consistent with a simple stellar population plus noise and differential reddening.
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When does the onset of multiple stellar populations in star clusters occur-II: No evidence of multiple stellar populations in Lindsay 113
Lindsay 113, a roughly 4 billion year old, 23,000 solar mass cluster, shows no detectable nitrogen spread among red giants, so its red-giant branch width is consistent with a simple stellar population plus noise and differential reddening.