Figure 6 from The ACS Survey of Galactic Globular Clusters. VII. Relative Ages

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The ACS Survey of Galactic Globular Clusters. VII. Relative Ages

Authors: Antonio MarÍn-Franch, Antonio Aparicio, Giampaolo Piotto, Alfred Rosenberg, Brian Chaboyer, Ata Sarajedini, Michael Siegel, Jay Anderson, Luigi R. Bedin, Aaron Dotter, Maren Hempel, Ivan King, Steven Majewski, Antonino P. Milone, Nathaniel Paust, and I. Neill Reid

MARÍN-FRANCH et al. 2009 The Astrophysical Journal 694 1498.

Provider: AAS Journals

Caption: Figure 6.

Testing the used MS-fitting procedure and relative ages determination using 13 Gyr synthetic isochrones. Upper panel shows the MS fitting for 13 Gyr synthetic isochrones with the same metallicities as the adopted reference clusters ([M/H] = −0.5, −0.8, −1.0, −1.1, −1.5, and −1.8). Lower panel shows the obtained relative ages. The MSTO magnitude of the [M/H] = −1.1 isochrone (encircled point) has been considered as MSTO zero point.

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