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Table B.1
Main observational constraints for the solar neighborhood.
| Observable | Observed value | Reference |
|
|
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| Surface densities of: | ||
| Gas | 10–15 M⊙ pc-2 | Kalberla & Kerp (2009) |
| 7 M⊙ pc-2 | Dickey (1993) | |
| Stars | 35 ± 5 M⊙ pc-2 | Gilmore et al. (1995) |
| 35 ± 5 M⊙ pc-2 | Flynn et al. (2006) | |
| Stars (WDs + NSs) | 2–4 M⊙ pc-2 | Mera et al. (1998) |
| Total | 56 ± 6 M⊙ pc-2 | Holmberg & Flynn (2004) |
| Star formation rate | 2–10 M⊙ pc-2 Gyr-1 | Guesten & Mezger (1982) |
| 2.4 M⊙ pc-2 Gyr-1 | Fuchs et al. (2009) | |
| SN Ia rate | 0.43–0.65 century-1 | Li et al. (2011) |
| SN II rate | 1.27–1.84 century-1 | Li et al. (2011) |
| Infall rate | 0.3–1.5 M⊙ pc-2 Gyr-1 | Portinari et al. (1998) |
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