Table 2
Molecular clouds in N11 identified in CO(2−1) with CPROPS.
| Cloud | δRA | δDec | Velocity | Radius | Δv | LCO(2−1) | R2−1/1−0 | MCO† | Mvir†† | Mvir/MCO |
|
|
|
|||||||||
| arcmin | km s-1 | pc | km s-1 | 102 K km s-1 pc2 | 103 M⊙ | |||||
|
|
||||||||||
| 1 | 7.8 | 8.3 | 270 | 13.2 ± 0.5 | 7.1 ± 0.3 | 42 ± 8 | 0.8 ± 0.2 | 52.0 ± 10.5 | 125.2 ± 11.2 | 2.4 ± 0.5 |
| 2a | 7.1 | –2.1 | 275 | < 5.6 | 3.9 ± 0.9 | 4 ± 1 | 2.7 ± 0.5 | 1.5 ± 0.4 | < 17 | < 11.2 |
| 3 | 7.0 | –1.2 | 278 | 9.4 ± 3.7 | 4.2 ± 1.3 | 21 ± 11 | 1.6 ± 0.3 | 13.1 ± 6.6 | 31.0 ± 18.2 | 2.4 ± 1.8 |
| 4 | 6.8 | –0.2 | 280 | 8.9 ± 1.0 | 4.1 ± 0.7 | 34 ± 10 | 1.0 ± 0.2 | 33.5 ± 10.3 | 27.6 ± 10.9 | 0.8 ± 0.4 |
| 5 | 3.6 | 5.3 | 278 | 12.8 ± 1.0 | 5.5 ± 0.5 | 26 ± 5 | 1.5 ± 0.3 | 18.5 ± 3.7 | 71.6 ± 14.5 | 3.9 ± 1.1 |
| 6a | 1.5 | 4.3 | 279 | < 5.6 | 4.7 ± 1.0 | 6 ± 2 | 2.4 ± 0.5 | 2.6 ± 1.0 | < 25 | < 9.5 |
| 7 | 4.2 | 7.0 | 283 | 3.2 ± 0.8 | 3.6 ± 0.5 | 7 ± 1 | 1.5 ± 0.3 | 5.0 ± 1.0 | 7.7 ± 2.5 | 1.6 ± 0.6 |
| 8 | 0.5 | 4.3 | 286 | 4.8 ± 1.1 | 6.8 ± 0.7 | 27 ± 6 | 2.9 ± 0.6 | 9.7 ± 2.1 | 41.7 ± 14.0 | 4.3 ± 1.7 |
| 9 | 2.1 | 5.2 | 286 | 9.2 ± 1.5 | 5.3 ± 0.8 | 12 ± 3 | 1.3 ± 0.3 | 9.6 ± 2.4 | 49.1 ± 20.0 | 5.1 ± 2.5 |
| 10 | 5.7 | 1.7 | 280 | 13.1 ± 1.1 | 4.5 ± 0.3 | 22 ± 5 | 2.4 ± 0.5 | 9.1 ± 1.8 | 50.2 ± 8.3 | 5.5 ± 1.4 |
| 11 | –8.3 | –3.1 | 269 | 5.0 ± 1.1 | 2.8 ± 0.3 | 5 ± 1 | 1.1 ± 0.2 | 4.5 ± 1.0 | 7.1 ± 2.5 | 1.6 ± 0.7 |
| 12 | –6.4 | 0.4 | 276 | 6.2 ± 1.4 | 3.5 ± 0.4 | 10 ± 3 | 0.9 ± 0.2 | 12.5 ± 3.3 | 14.1 ± 5.2 | 1.1 ± 0.5 |
| 13 | –6.9 | –1.0 | 280 | 16.0 ± 1.6 | 5.9 ± 0.8 | 39 ± 8 | 1.1 ± 0.2 | 45.0 ± 9.5 | 104.2 ± 30.0 | 2.3 ± 0.8 |
| 14 | –6.2 | –5.6 | 279 | 10.4 ± 0.9 | 5.9 ± 0.5 | 73 ± 15 | 0.9 ± 0.2 | 78.7 ± 16.5 | 67.7 ± 16.9 | 0.9 ± 0.3 |
| 15 | –6.4 | –3.9 | 284 | 7.5 ± 3.2 | 4.2 ± 1.1 | 9 ± 4 | 0.8 ± 0.2 | 12.1 ± 5.5 | 25.2 ± 13.8 | 2.1 ± 1.5 |
| 16 | –7.9 | –5.7 | 271 | 6.8 ± 0.7 | 4.5 ± 0.4 | 10 ± 2 | 0.7 ± 0.1 | 17.2 ± 3.6 | 26.2 ± 5.1 | 1.5 ± 0.4 |
| 17 | –0.3 | –3.9 | 269 | 6.1 ± 0.6 | 4.5 ± 0.6 | 9 ± 2 | 0.7 ± 0.1 | 12.1 ± 2.6 | 22.8 ± 6.6 | 1.9 ± 0.7 |
| 18 | –3.0 | –9.1 | 278 | 14.4 ± 2.4 | 2.8 ± 0.5 | 39 ± 10 | 0.8 ± 0.2 | 51.0 ± 12.6 | 20.7 ± 8.2 | 0.4 ± 0.2 |
| 19 | –2.3 | –7.9 | 280 | 7.7 ± 2.2 | 2.4 ± 0.5 | 12 ± 4 | 1.2 ± 0.2 | 10.9 ± 3.3 | 8.4 ± 4.3 | 0.8 ± 0.5 |
Notes. Offset positions are relative to 
, 
J2000.0. The radii correspond to the geometrical radii for each elliptical cloud. Uncertainties include the error-bars in the CPROPS fitting and 20% error in the luminosity due to calibration.
Molecular masses estimated from the CO(2 − 1) luminosity, scaled to CO(1 − 0) by the R2 − 1/1 − 0 values, using the XCO-factor for the LMC estimated by Hughes et al. (2010) of 4.7 × 1020 cm-2 (K km s-1)-1 (see Sect. 5.1).
Virial masses computed with the formula Mvir = 190 Δv2 R for a spherical cloud with a density profile ∝ r-1 (MacLaren et al. 1988).
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