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MESA Isochrones and Stellar Tracks (MIST). II. Models with α-enhanced Chemical Composition

  • Authors: Aaron Dotter, Evan B. Bauer, Minjung Park, Charlie Conroy, Antonino P. Milone, Meridith Joyce, Matteo Cantiello

Aaron Dotter et al 2026 The Astrophysical Journal Supplement Series 283 .

  • Provider: AAS Journals

Caption: Figure 8.

Comparison of metal-poor isochrones with the HST/WFC3 CMDs of three Galactic globular clusters: NGC 6397 (left), NGC 6752 (center), and 47 Tuc (right). In each panel, the observations are compared with models at a fixed [Fe/H] and age but with three different values of [α/Fe]. Model [Fe/H], distance modulus, and reddening parameters are given in Table 2.

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