Open Access
Table 1.
Definitions, values, and associated references of parameters used in the current model.
| Symbol | Definition | Eq./Sect. | Values | |
|---|---|---|---|---|
| – Reference masses – | ||||
| Mh, min | Minimal dark-matter halo mass (20 particles) | Sect. 2.1 | 2.05 × 109 M⊙ | |
| Mmix | Transition mass from cold to hot accretion mode | Sect. 2.2, Eq. (2) | 1011 M⊙ | |
 |
Initial SMBH mass (seed) | Sect. | 300 M⊙ | |
| – Thermal instability – | ||||
| εTI | Thermal instability propagation efficiency | Sect. 6.1.2, Eq. (35) | 0.63 | |
| – Feedback: Repartition – | ||||
| fME | Fraction of SMBH infall rate converted in power | Sect. 5.3, Eq. (26) | 0.1 | |
| fk, SN | Kinetic fraction of SN energy | Sect. 24, Eq. (24) | 2/3 | |
| fw | Fraction affected to large-scale wind | Sect. 24, Eq. (24) | 0.2 | |
| fTh, SN | Thermal fraction of non-kinetic SN energy | Sect. 5.4.4, Eq. (27) | 1/2 | |
| fk, AGN | Kinetic fraction of AGN energy | Sect. 5.4.1, Eq. (25) | 10−3 | |
| fTh, AGN | Thermal fraction of non-kinetic AGN energy | Sect. 5.4.4 | 0.6 | |
| – Accretion – | ||||
 |
Fraction (in mass) of gas which is already fragmented when accreted | Sect. 4 | 1/3 | |
| – Turbulent kinetic energy budget – | ||||
| fincr | Fraction of the rotational energy associated with the newly | Sect. 5.5.1, Eq. (30) | 1/3 | |
| diffuse accreted gas converted in turbulent kinetic energy | ||||
| fdisp | Fraction of the turbulent kinetic energy budget | Sect. 5.5.1, Eq. (30) | 1/2 | |
| dissipated per dynamical time step | ||||
| – Feedback: Additional parameters – | ||||
| vw | Large-scale wind velocity | Sect. 5.4.1, Eq. (24) | [100,200] km s−1 | |
| ESN | Total SN energy | Sect. 5.2 | 1044 J | |
| η• | Inflow-outflow ratio for SMBH activity | Sect. 5.4.1 | 1.0 | |
| ηm | Minimal mass ratio for major merger events | 1/3 |
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