Figure 2 from Confirming the Presence of Second-population Stars and the Iron Discrepancy along the AGB of the Globular Cluster NGC 6752

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Confirming the Presence of Second-population Stars and the Iron Discrepancy along the AGB of the Globular Cluster NGC 6752

Authors: A. Mucciarelli, E. Lapenna, C. Lardo, P. Bonifacio, F.R. Ferraro, and B. Lanzoni

2019 The Astrophysical Journal 870 124.

Provider: AAS Journals

Caption: Figure 2.

[Fe/H] distributions for the AGB and RGB samples (upper and lower panels, respectively) as derived from Fe I (black histograms) and Fe II lines (blue and red histograms). The left panels show the [Fe/H] distributions obtained with the photometric T_eff scale used by C17, while the right panels display those obtained with the spectroscopic T_eff.

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