Table 1.
Inputs to simulation models.
| Properties | Simulation run | UV | HI shielding | H2 shielding | IMF | εSN | Extra modules |
|---|---|---|---|---|---|---|---|
| (a) | (b) | (c) | (d) | (e) | (f) | (g) | (h) |
| HM | HM | – | DB96 | S | 0.1 | – | |
| HM-HISS | HM | R13 | DB96 | S | 0.1 | – | |
| HM-HISSmed (ref) | HM | B.1 | DB96 | S | 0.1 | – | |
| P19 | P19 | – | DB96 | S | 0.1 | – | |
| UV rate | P19-HISS | P19 | R13 | DB96 | S | 0.1 | – |
| Modeling | P19-HISSmed | P19 | B.1 | DB96 | S | 0.1 | – |
| FG20 | FG20 | – | DB96 | S | 0.1 | – | |
| FG20-HISS | FG20 | R13 | DB96 | S | 0.1 | – | |
| FG20-HISSmed | FG20 | B.1 | DB96 | S | 0.1 | – | |
| HM-std | HM | – | DB96 | S | 0.1 | Threshold 0.1 cm−3 | |
| Star formation | HM-HISSmed-std | HM | B.1 | DB96 | S | 0.1 | Threshold 0.1 cm−3 |
| HM-HISSmed-H2 | HM | B.1 | DB96 | S | 0.1 | Non-equilibrium H2-based | |
| HM-HISSmed-3b | HM | B.1 | DB96 | S | 0.1 | 3-body processes | |
| HM-HISSmed-3b-DB2 | HM | B.1 | DB96 (Eq. (37)) | S | 0.1 | 3-body processes | |
| HM-HISSmed-3b-WG | HM | B.1 | WG17 | S | 0.1 | 3-body processes | |
HM-HISSmed- |
HM | B.1 | DB96 | S | 0.1 |  channel only |
|
| HM-HISSmed-none | HM | B.1 | DB96 | S | 0.1 | No H2 channels | |
| HM-HISSmed-cat-75-Zevol | HM | B.1 | DB96 | S | 0.1 | Catalysis at 75 K | |
| HM-HISSmed-cat-75-pe | HM | B.1 | DB96 | S | 0.1 | Catalysis at 75 K and | |
| photoelectric heating | |||||||
| Gas physics | HM-HISS-cat-40-Zevol | HM | R13 | DB96 | S | 0.1 | Catalysis at 40 K |
| & chemistry | HM-HISS-cat-75-Zevol | HM | R13 | DB96 | S | 0.1 | Catalysis at 75 K |
| HM-HISS-cat-120-Zevol | HM | R13 | DB96 | S | 0.1 | Catalysis at 120 K | |
| HM-HISS-cat-Tcmb-Zevol | HM | R13 | DB96 | S | 0.1 | Catalysis at TCMB(z) | |
| HM-HISS-cat-Tbeta-Zevol | HM | R13 | DB96 | S | 0.1 | Catalysis at Tβ(z) | |
| HM-HISS-cat-75-Zsun | HM | R13 | DB96 | S | 0.1 | Catalysis at 75 K and Z = Z⊙ | |
| HM-HISS-cat-75-0.01Zsun | HM | R13 | DB96 | S | 0.1 | Catalysis at 75 K and Z = 10−2 Z⊙ | |
| HM-HISS-cat-75-Zt | HM | R13 | DB96 | S | 0.1 | Catalysis at 75 K and Z = Z(t) | |
| With Z(t)-dependent cooling | |||||||
| HM-cat-75-Zevol | HM | – | DB96 | S | 0.1 | Catalysis at 75 K | |
| HM-HISSmed-cr | HM | B.1 | DB96 | S | 0.1 | Constant ζ , all gas | |
| HM-HISSmed-cr-P18 | HM | B.1 | DB96 | S | 0.1 | ζ by P18,(*) all gas | |
| HM-HISSmed-cr-P18sfr | HM | B.1 | DB96 | S | 0.1 | ζ by P18,(*) SFR-scaled | |
| HM-1 | HM | – | DB96 | S | 1.0 | – | |
| HM-0.5 | HM | – | DB96 | S | 0.5 | – | |
| HM-0.01 | HM | – | DB96 | S | 0.01 | – | |
| HM-w700 | HM | – | DB96 | S | 0.1 | Wind velocity of 700 km s−1 | |
| Feedback | HM-wf | HM | – | DB96 | S | 0.1 | Winds decoupled for 0.1 tH |
| & IMF | HM-Chabrier | HM | – | DB96 | Ch | 0.1 | – |
| HM-1-Chabrier | HM | – | DB96 | Ch | 1.0 | – | |
| P19-1 | P19 | – | DB96 | S | 1.0 | – | |
| P19-Chabrier | P19 | – | DB96 | Ch | 0.1 | – | |
| P19-1-Chabrier | P19 | – | DB96 | Ch | 1.0 | – | |
Notes. Blocks in the first column (a) collect, from top to bottom, runs with different implementation properties. Following columns refer to: simulation name (b), cosmological UV rates (c), HI shielding (d), H2 shielding (e), IMF (f), SN energy fraction (g), and description of extra modules adopted besides basics ones (h). UV backgrounds are by Haardt & Madau (1996, HM), Puchwein et al. (2019, P19) or Faucher-Giguère (2020, FG20); HI shielding by Rahmati et al. (2013, R13) or Eq. (B.1); H2 shielding by Draine & Bertoldi (1996, DB96, their Eq. (36) if not otherwise specified) or Wolcott-Green et al. (2017, WG17); IMF by Salpeter (1955, S) or Chabrier (2003, Ch). (*) Simple fit in Appendix E to the ℒ model by Padovani et al. (2018).
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