Table 1
Simulation parameters.
| Quantity | Unit | HI-base | HI-ext | N4631 [Src.] |
|---|---|---|---|---|
| Rc | kpc | 12.0 | 12.0 | 11.7 [a] |
| zc | kpc | 0.25 | 1.0 | 1.0 [b] |
| M1 | 1010 M⊙ | 2.050 | 0.205 | 0.0 [c] |
| M2 | 1010 M⊙ | 25.47 | 2.547 | 1.585 [c] |
| a1 | – | 0.000 | 0.000 | – |
| a2 | – | 7.258 | 7.258 | 3.0 [c] |
| b1 | – | 0.495 | 0.495 | – |
| b2 | – | 0.520 | 0.520 | 0.28 [c] |
| Mhalo | 1010 M⊙ | 13.5 | 1.35 | 40.0 [d] |
| Halo type | – | Eq. (15) | Eq. (15) | Eq. (16) |
| ndisk | 103 m−3 | 1.0 | 1.0 | 2.8 [c] |
| Tdisk | MK | 5.0 | 5.0 | 5.6 [e] |
| Bdisk | nT | – | 0.1 | 1.0 [f] |
| LB | kpc | – | ∞ | 8.0 [g] |
| Field lines | – | homog. | homog. | hyperbolic |
| Cooling | – | yes | yes | no |
 |
(km/s)2 | – | 5500 | c5500 |
| λdisk | kpc | – | 0.1 | 0.1 [h] |
| γ | – | 1.67 | 1.67 | 1.40 |
Notes. Simulation parameters of the boundary layout, gravitational potential (14), and galactic boundary conditions for large-scale and small-scale quantities adopted in this study, or more specifically the HI-80 verification (“HI-base,” Sect. 3.2), its low-mass MHD-turbulent extension (“HI-ext,” Sect. 3.3), and the more realistic analog to NGC 4631 (“N4631,” Sect. 4.1). For HI-base, zc was chosen to match the grid cell size used by HI-80. Values without sources are justified in the main text. [a] Wiegert et al. (2015); [b] Ann et al. (2011); [c] Wang et al. (1995); [d] Martínez-Delgado et al. (2015); [e] Wang et al. (2023); [f] Beck et al. (2019); [g] Basu & Roy (2013); [h] Haverkorn et al. (2008), Houde et al. (2013), Chamandy & Shukurov (2020), Seta & Federrath (2024).
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