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Extending the [C/N]–Age Calibration: Using Globular Clusters to Explore Older and Metal-poor Populations

  • Authors: Taylor Spoo, Katelyn Thomas, Ellie Kaleo Toguchi-Tani, Jonah Otto, Natalie Myers, Jamie Tayar, Jessica S. Schonhut-Stasik, Matthew Shetrone, Alessa Ibrahim Wiggins, John Donor, Peter M. Frinchaboy

Taylor Spoo et al 2025 The Astronomical Journal 170 .

  • Provider: AAS Journals

Caption: Figure 5.

Log(g) versus [C/N] plot of first population of stars without peculiar enrichment. These are the same stars from Figure 4 shown in cyan. Stars used in our calibration are shown in green. The gray vertical dashed line and vertical red dashed line represent the FDU log(g) cut and extramixing (EM), respectively, from Table 2 of M. Shetrone et al. (2019).

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