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Published February 21, 2025 | Version 2.1.1
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Kiauhoku Stellar Evolutionary Model Grids

Authors/Creators

  • 1. ROR icon University of Florida

Description

Stellar evolutionary model grids for use with Python Kiauhoku package (presented by Claytor et al. 2020). This dataset contains models from MIST, YREC, GARSTEC, and Dartmouth projects.

Model Grids

fastlaunch

Originally presented by Claytor et al. (2020). Computed using the Yale Rotating stellar Evolution Code (YREC, Pinsonneault et al. 1989) with rotational evolution computed separately using the magnetic braking law of van Saders and Pinsonneault (2013) under "fast launch" condition of Pinit ~ 8 days.

slowlaunch

Originally presented by Claytor et al. (2020). Computed using the Yale Rotating stellar Evolution Code (YREC, Pinsonneault et al. 1989) with rotational evolution computed separately using the magnetic braking law of van Saders and Pinsonneault (2013) under "slow launch" condition of Pinit ~ 13 days.

rocrit

Originally presented by Claytor et al. (2020). Computed using the Yale Rotating stellar Evolution Code (YREC, Pinsonneault et al. 1989) with rotational evolution computed separately using the stalled magnetic braking law of van Saders et al. (2016) under "fast launch" condition of Pinit ~ 8 days.

mist

Evolutionary tracks from the MESA Isochrones and Stellar Tracks (MIST, Choi et al. 2016). Computed using Modules for Experiments in Stellar Astrophysics (MESA, Paxton et al. 2010).

yrec

Originally presented by Tayar et al. (2022). Computed using the Yale Rotating stellar Evolution Code (YREC, Pinsonneault et al. 1989).

dartmouth

Originally presented by Dotter et al. (2008). Models from the Dartmouth Stellar Evolution Program (DSEP).

garstec

Originally presented by Serenelli et al. (2013). Computed using the Garching Stellar Evolution Code (GARSTEC, Weiss & Schlattl 2008).

Notes

v. 2.1.1 Resampled EEPs for YREC, GARSTEC, and Dartmouth grids, following Morales et al. (2025).

v. 2.1.0 added the full available MIST EEP tracks, rather than just a subset. 

v. 2.0.3 fixed a minor bug in the YREC EEP tracks for M/Msun >= 1.8 that mistook the TRGB as the RGB bump. Removed the bump as an EEP; now all tracks (save one, M/Msun = 0.7, [Z/X] = +0.5) correctly reach the TRGB. fixed critical bug from v. 2.0.2.

v. 2.0.2 [DEPRECATED: critical bug in the yrec_eep.tar.gz file, where kiauhoku would download it, not realize it downloaded, and infinitely try to download again. This bug is only present in v 2.0.2]

v. 2.0.1 updated Dartmouth and Garstec EEP grids to extend to RGBTip.

v. 2.0 updated directory structure for compatibility with kiauhoku v. 2.0.

v. 1.3 src and eep files provided for individual model grids.

v. 1.2 bug fixed in Dartmouth (DSEP) grid that affected placement of Terminal Age Main-Sequence EEP in ~25% of tracks.

v. 1.1 grids are identical, but added separately downloadable interpolators and grids, as well as an option for bulk download.

Files

Files (34.4 MB)

Name Size Download all
md5:0ce83def4548b8d3e4764733b8567fee
20.2 MB Download
md5:aed798b915c478b6bc07275da3d37167
3.7 MB Download
md5:fad36e2738e0175528ff4b4da6878f46
10.5 MB Download

Additional details

References

  • Choi, J. et al. 2016a, ApJ, 823, 102
  • Claytor, Z. R. et al. 2020, ApJ, 888, 43
  • Dotter, A. 2016, ApJS, 222, 8
  • Paxton, B. et al. 2010, Astrophysics Source Code Library, record ascl:1010.083
  • Pinsonneault, M. H. et al. 1989, ApJ, 338, 424
  • Serenelli, A. M. et al. 2013, MNRAS, 429, 3645
  • van Saders, J. L. & Pinsonneault, M. H. 2013, ApJ, 776, 67
  • van Saders, J. L. et al. 2016, Nature, 529, 181
  • Weiss, A., & Schlattl, H. 2008, Ap&SS, 316, 99