Open Access
Table 1.
Overview of the most important global parameters in the galaxy-in-a-box model.
| Category | Parameter | Description | Standard value | Ref. |
|---|---|---|---|---|
| Power-law slope for the high-mass end of IMF, i.e., | ||||
| x | for stars with masses > 1 M⊙; 0 → standard, x = −2.3; | 0 | 1 | |
| 1 → top-heavy, x = −1.3; 2 → bottom-heavy, x = −3.3 | ||||
| Star formation | εSF | Star formation efficiency | 10% | 2 |
 |
Free-fall time scaling factor | 1 | ... | |
| α | Power-law slope of molecular cloud mass distribution | −1.64 | 3 | |
| NCL | Number of simulated clusters | 104 | ... | |
| MGMC | Minimum and maximum masses of progenitor giant molecular clouds | 104 M⊙ ≤ MGMC ≤ 106 M⊙ | ... | |
| A | Galactic scaling factor | 8.0 | ... | |
| B | Galactic arms sweep | 1.0 | ... | |
| Morphology | NS | Spiral winding number | 8.26 | ... |
| ϕ | Angular coverage of spiral arms | 500° | ... | |
| Rg | Galactocentric radius | 12 kpc | 4 | |
| hR | Characteristic scale-length | 2.38 pc | 5 | |
| D | Distance to the galaxy | 7.6 Mpc | 6 | |
| Observational | θ | Beam size convolved with galaxy image |
 |
... |
| psize | Pixel size |
 |
... | |
| Dim | Image size in pixels | 1280 × 1280 | ... | |
References. (1) Chabrier (2003); (2) Lada & Lada (2003); (3) Roman-Duval et al. (2010); (4) Ciardullo et al. (2002); (5) Casasola et al. (2017); (6) Jarrett et al. (2003).
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