High-precision differential abundances confirm M 22 hosts a >0.24 dex iron spread and ~0.65 dex s-process spread, and reveal new internal abundance variations within each population.
Vistas in Astronomy , year = 1956, month = jan, volume =
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The complex stellar system M 22: confirming abundance variations with high precision differential measurements
High-precision differential abundances confirm M 22 hosts a >0.24 dex iron spread and ~0.65 dex s-process spread, and reveal new internal abundance variations within each population.