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Table 1
Global observational constraints for the MW.
| Disk (>2 kpc) | Bulge (<2 kpc) | |
|
|
||
| Stellar mass (1010M⊙) | 3.–4. (1) | 1.–2. (1) |
| Gas massa (109M⊙) | 8.1 ± 4.5 (2) | 1.1 ± 0.8 (3) |
| HI mass (109M⊙) | 4.9 ± 2.5 (2) | 0.005 (3) |
| H2 mass (109M⊙) | 0.9 ± 0.4 (2) | 0.05 (3) |
| SFR (M⊙/yr) | 0.65–3 (4) | – |
| Infall rate (M⊙/yr) | 0.6–1.6 (5, 6) | – |
| CCSN rate (per 100 yr) | 2 ± 1 (7) | 0.23 ± 0.1 (7) |
| SNIa rate (per 100 yr) | 0.4 ± 0.2 (7) | 0.14 ± 0.06 (7) |
Notes.
Reference. (1) Flynn et al. (2006); (2) this work (Appendix A); (3) Ferrière et al. (2007); (4) Robitaille & Whitney (2010), Chomiuk & Povich (2011); (5) Marasco et al. (2012); (6) Lehner & Howk (2011); (7) Prantzos et al. (2011).
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