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Table 7
Summary of the star formation activity in the clouds.
| Cloud | Methanol masers | Radio continuum & spectral type | Main reference | ṀSF/ (10-3M⊙ yr-1) | ||||||||
|
|
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| Sgr C | 2 | one source | Forster & Caswell (2000) | 0.8 | ||||||||
| 20 km s-1 | 0 | 1 × O9 | Lu et al. (2015) | 0.8–3.1 | ||||||||
| 50 km s-1 | 0 | 1 × O7, 2 × O8.5, 1 × O9 | Mills et al. (2011) | 3.2 | ||||||||
| G0.253+0.016 | 0 | none | Immer et al. (2012a) | <0.8 | ||||||||
| Dust Ridge C | 1 | none | Immer et al. (2012a) | ~0.9 | ||||||||
| Dust Ridge D | 0 | none | Immer et al. (2012a) | <0.8 | ||||||||
| Sgr B1–off | 1 | none | Mehringer et al. (1993) | ~0.9 | ||||||||
| Sgr B2 | 11 | 20 × B0, 20 × O9.5 to O7, | Gaume et al. (1995) | 36 | ||||||||
| 9 × O6.5 to O5 | ||||||||||||
| Sgr D | 0 | 1 × O7 | Liszt (1992) | 0.8 | ||||||||
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