Figure 2 from TOWARD PRECISION PHOTOMETRY FOR THE ELT ERA: THE DOUBLE SUBGIANT BRANCH OF NGC 1851 OBSERVED WITH THE GEMINI/GeMS MCAO SYSTEM

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TOWARD PRECISION PHOTOMETRY FOR THE ELT ERA: THE DOUBLE SUBGIANT BRANCH OF NGC 1851 OBSERVED WITH THE GEMINI/GeMS MCAO SYSTEM

Authors: P. Turri, A. W. McConnachie, P. B. Stetson, G. Fiorentino, D. R. Andersen, J.-P. Véran, and G. Bono

2015 The Astrophysical Journal Letters 811 L15.

Provider: AAS Journals

Caption: Figure 2.

Left: (K_s, F606W-K_s) color–magnitude diagram of NGC 1851; the detail of the double SGB is shown in the inset. Right: same as the left panel with average photometric (random) uncertainties indicated. Overlaid is the fiducial line with the approximate locations of the main sequence turnoff and main sequence knee highlighted by red dots.

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