White Dwarf Population Simulator
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WHIST — White-dwarf HR-diagram Interactive Simulation Tool
An in-browser white-dwarf population simulator. Everything runs client-side via Pyodide; there is no backend.
This tool is an interactive wrapper around (among other parameters) published white-dwarf cooling tracks, and atmosphere models. All the science regarding the cooling of white dwarfs belongs to the authors below. The bundled model grids are redistributed for convenience and remain subject to their original authors' terms — please cite the corresponding papers if you use this work.
White Dwarf Models
- WD_models — HR-diagram ↔ parameter interpolation framework by Sihao Cheng (IAS). github.com/SihaoCheng/WD_models. Default model tuple: Bédard et al. (2020) cooling tracks with the Montreal/Bergeron synthetic atmospheres, plus the ONe ultramassive tracks.
- Camisassa CO cooling tracks — La Plata LPCODE sequences (Z = 0.02; DA & DB): Althaus et al. (2013); Camisassa et al. (2016, 2017, 2019). Atmospheres: Koester (2010).
- "Stealth DQ" carbon-enrichment grids — Camisassa et al. (2023), A hidden population of white dwarfs with atmospheric carbon traces in the Gaia bifurcation, A&A 674, A213.
- STELUM distillation sequences & atmospheres — Montreal STELUM code: Bédard, Bergeron, Brassard & Fontaine (2022). Distillation: Bédard, Blouin & Cheng (2024), Nature 627, 286.
- Gaia overlay — 120 pc Gaia white-dwarf sample: Gentile Fusillo et al. (2021), MNRAS 508, 3877.
References
- Althaus, L. G. et al. (2013), A&A 557, A19. doi:10.1051/0004-6361/201321868
- Bédard, A. et al. (2020), ApJ 901, 93. doi:10.3847/1538-4357/abafbe
- Bédard, A. et al. (2022), ApJ 927, 128. doi:10.3847/1538-4357/ac4497
- Bédard, A., Blouin, S. & Cheng, S. (2024), Nature 627, 286. doi:10.1038/s41586-024-07102-y
- Bergeron, P. et al. (2011), ApJ 737, 28. doi:10.1088/0004-637X/737/1/28
- Camisassa, M. E. et al. (2016), ApJ 823, 158. doi:10.3847/0004-637X/823/2/158
- Camisassa, M. E. et al. (2017), ApJ 839, 11. doi:10.3847/1538-4357/aa6797
- Camisassa, M. E. et al. (2019), A&A 625, A87. doi:10.1051/0004-6361/201833822
- Camisassa, M. E. et al. (2023), A&A 674, A213. doi:10.1051/0004-6361/202346628
- Cheng, S., WD_models. github.com/SihaoCheng/WD_models
- Gentile Fusillo, N. P. et al. (2021), MNRAS 508, 3877. doi:10.1093/mnras/stab2672
- Koester, D. (2010), MmSAI 81, 921 (no DOI). ADS:2010MmSAI..81..921K
If you think you should — or shouldn't — be cited here, or a reference is wrong, please contact me at yoavziv@mail.tau.ac.il so I can fix it.