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Table 5
Fit results of the mass spectra of different high mass star forming samples.
| Sample | Mass range (M⊙) | Distance range (kpc) | Mmina (M⊙) | α | Reference |
|
|
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| IRDC cores | 10−2100 | 0.4−7.8 | 100 | −2.1 ± 0.4 | Rathborne et al. (2006) |
| IRDC clumps | 30−3000 | 2−5 | 40b | −1.76 ± 0.05 | Ragan et al. (2009) |
| IRDCs | 0.1−105 | 2.5−7.5 | 800 | −1.85 ± 0.07 | Peretto & Fuller (2010) |
| 1.2 mm dust clumps | 10−4100 | 0.01−4 | 92 | −2.1 ± 0.02 | Beltrán et al. (2006) |
| GRSMC 45.60+0.30 clumps | 4−1000 | 1.8 | 15 | −1.78 ± 0.13 | Simon et al. (2001) |
| GRSMC 43.30−0.33 clumps | 10−1600 | 3 | 40 | −1.85 ± 0.12 | Simon et al. (2001) |
| GRSMC 45.46+0.05 clumps | 25−104 | 6 | 250 | −1.80 ± 0.10 | Simon et al. (2001) |
| W49 | 250−4 × 104 | 11.4 | 1000 | −1.52 ± 0.20 | Simon et al. (2001) |
| ATLASGAL | 0.4−5.6 × 104 | 0.2−17 | 1000 | −1.83 ± 0.1 | Sect. 6.4 |
| M17 | 0.8−120 | 1.6 | 3c | −2.1 ± 0.2 | Swift & Beaumont (2010) |
| NGC 7538 | 1.4−2700 | 2.8 | 15c | −2.1 ± 0.36 | Swift & Beaumont (2010) |
| Cygnus X | 4−949 | 1.7 | 5.3c | −2.1 ± 0.2 | Swift & Beaumont (2010) |
| NGC 6334 | 3−6000 | 1.7 | 32c | −1.7 ± 0.1 | Swift & Beaumont (2010) |
Notes.
(b)
We use the mass mlim given in Table 1 in Ragan et al. (2009) as the minimum mass.
(c)
Swift & Beaumont (2010) fit a double power law to the mass spectrum of IRDC clumps, we use the break mass as the minimum mass.
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