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The YREC Stellar Evolution Code: Public Data Release

  • Authors: Marc H. Pinsonneault, Jennifer L. van Saders, Lyra Cao, Jamie Tayar, Franck Delahaye, Leslie M. Morales, Rachel A. Patton, Matthew C. Rendina, Joel C. Zinn, Zachary R. Claytor, Amanda L. Ash, Susan Byrom, Kaili Cao, Vincent A. Smedile

Marc H. Pinsonneault et al 2026 The Astrophysical Journal 1006 .

  • Provider: AAS Journals

Caption: Figure 10.

Comparison of the core helium-burning phases from YREC and PARSEC v2.0 against APOKASC-3 masses and radii for solar-metallicity stars. Cases with and without solar diffusion-calibrated Y = 0.273 and Z = 0.0188 are shown. YREC models with M ≥ 2M⊙ use a two-step procedure. See the text for details. Although there is qualitative agreement, asteroseismic constraints suggest opportunities for understanding the physics of the horizontal branch better in both YREC and PARSEC v2.0 models.

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