Table 3.
Summary of the different simulations used in this work: SIMBA, HORIZON-AGN, EAGLE, and TNG100.
| Parameters | SIMBA | HORIZON-AGN | EAGLE | TNG100 |
|---|---|---|---|---|
| Ωm – Ωb | 0.3–0.048 | 0.272–0.045 | 0.307–0.048 | 0.309–0.048 |
| H0 | 68 km s−1 Mpc−1 | 70.4 km s−1 Mpc−1 | 67.77 km s−1 Mpc−1 | 67.74 km s−1 Mpc−1 |
| σ8 – ns | 0.82–0.97 | 0.81–0.97 | 0.83–0.96 | 0.82–0.97 |
| Code | GIZMO | RAMSES | GADGET-3 | AREPO |
| Box size | 100 h−1 Mpc | 100 h−1 Mpc | 67.77 h−1 Mpc | 75 h−1 Mpc |
| Particles | 10243 | 10243 | 15043 | 18203 |
| Star particle mass(α) | 1.82 × 107 M⊙ | 2 ×106 M⊙ | 1.81 × 106 M⊙ | 1.4 × 106 M⊙ |
| Gas particle mass | 1.82 × 107 M⊙ | – | 1.81 × 106 M⊙ | 1.4 × 106 M⊙ |
| DM particle mass | 9.6 × 107 M⊙ | 8 × 107 M⊙ | 9.7 × 106 M⊙ | 7.5 × 106 M⊙ |
| Gravitational softening/resolution | 0.5 h−1kpc down to 1 proper kpc | 0.8 proper h−1kpc | 1.8 h−1kpc down to 0.7 proper kpc | 0.5 h−1kpc |
| Galaxy finder (np)(β) | 6D FoF (30) | ADAPTAHOP (50) | FoF & SUBFIND (30) | FoF & SUBFIND (30) |
| Mass completeness(γ) | log10(Mcomp/M⊙) = 8.7 | log10(Mcomp/M⊙) = 8.2 | log10(Mcomp/M⊙) = 7.7 | log10(Mcomp/M⊙) = 7.6 |
| SNe feedback | Winds-kinetic | Winds-kinetic | Thermal | Winds-kinetic |
| AGN feedback | Radio mode-kinetic & X-ray heating, quasar mode-kinetic | Radio mode-kinetic and quasar mode-thermal | Thermal | Radio mode-kinetic, quasar mode-thermal |
| Feedback calibration | z = 0 galaxy stellar mass function | z = 0 black hole-galaxy scaling relation | z = 0 GSMF, galaxy sizes, M⋆–MBH relation | SFRD evolution, GSMF, SHMR at z = 0 |
| Star formation | Proceeds in nH2 > 0.13 cm−3 regions, following a Schmidt relation with 2% efficiency | Proceeds in nH > 0.1 cm−3 regions, following a Schmidt relation with 2% efficiency | Metallicity dependant density threshold reproducing KS relation | Proceeds in nH > 0.1 cm−3 regions, following a Schmidt relation with 2% efficiency |
| SFR estimator | ∼50–100 Myr | 100 Myr | 30 kpc aperture | 100 Myr(δ) |
Notes. The three blocks respectively recap the cosmological parameters, general simulation parameters, and baryonic physics, including models for feedback and star formation. (α)Initial mass particle. (β)Minimal number of particles for a galaxy to be found. (γ)Galaxy stellar mass completeness based on the initial stellar mass particle and the minimum number of particles used by the galaxy finder. (δ)Donnari et al. (2019), Pillepich et al. (2019).
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