Table 6
Correlations between column densities of ten COMs and properties of the CALYPSO sources.
| Prop.(a) | Molecule | Npts (b) | N (c) | NΩ∕Sc1 (d) | NΩ∕Sc3 (e) | N∕NCH3OH (f) | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| 100 × ρ | P | 100 × ρ | P | 100 × ρ | P | 100 × ρ | P | |||
| Lint | CH3OH | 11 |  |
2(−1) |  |
1(−2) |  |
1(−3) | – | – |
| C2H5 OH | 5 |  |
3(−1) |  |
1(−1) |  |
8(−2) |  |
2(−1) | |
| CH3OCHO | 9 |  |
4(−1) |  |
1(−1) |  |
3(−2) |  |
1(−1) | |
| CH3OCH3 | 8 |  |
2(−1) |  |
1(−1) |  |
8(−2) |  |
1(−1) | |
| CH3CHO | 6 |  |
8(−1) |  |
9(−1) |  |
2(−1) |  |
2(−4) | |
| NH2CHO | 6 |  |
3(−1) |  |
1(−1) |  |
2(−2) |  |
9(−1) | |
| CH3CN | 10 |  |
2(−1) |  |
2(−2) |  |
1(−2) |  |
5(−1) | |
| C2H5 CN | 4 |  |
1(−1) |  |
2(−1) |  |
2(−1) |  |
6(−1) | |
| a-(CH2OH)2 | 3 | – | – | – | – | – | – | – | – | |
| CH2 (OH)CHO | 4 |  |
9(−1) |  |
6(−1) |  |
4(−1) |  |
6(−3) | |
| Menv | CH3OH | 11 |  |
3(−1) |  |
4(−1) |  |
4(−1) | – | – |
| C2H5 OH | 5 |  |
2(−1) |  |
3(−1) |  |
6(−1) |  |
3(−1) | |
| CH3OCHO | 9 |  |
8(−1) |  |
9(−1) |  |
9(−1) |  |
7(−1) | |
| CH3OCH3 | 8 |  |
7(−1) |  |
2(−1) |  |
5(−1) |  |
6(−1) | |
| CH3CHO | 6 |  |
9(−1) |  |
1(0) |  |
9(−1) |  |
1(0) | |
| NH2CHO | 6 |  |
9(−1) |  |
9(−1) |  |
1(0) |  |
9(−1) | |
| CH3CN | 10 |  |
7(−1) |  |
7(−1) |  |
8(−1) |  |
7(−1) | |
| C2H5 CN | 4 |  |
3(−1) |  |
7(−1) |  |
7(−1) |  |
5(−2) | |
| a-(CH2OH)2 | 3 | – | – | – | – | – | – | – | – | |
| CH2 (OH)CHO | 4 |  |
6(−1) |  |
7(−1) |  |
8(−1) |  |
1(0) | |
| Menv /Lint | CH3OH | 11 |  |
8(−1) |  |
3(−1) |  |
2(−1) | – | – |
| C2H5 OH | 5 |  |
6(−2) |  |
2(−2) |  |
7(−2) |  |
7(−1) | |
| CH3OCHO | 9 |  |
6(−1) |  |
3(−1) |  |
2(−1) |  |
2(−1) | |
| CH3OCH3 | 8 |  |
5(−1) |  |
7(−3) |  |
3(−2) |  |
5(−1) | |
| CH3CHO | 6 |  |
9(−1) |  |
9(−1) |  |
4(−1) |  |
5(−2) | |
| NH2CHO | 6 |  |
3(−1) |  |
2(−1) |  |
2(−1) |  |
8(−1) | |
| CH3CN | 10 |  |
5(−1) |  |
2(−1) |  |
2(−1) |  |
8(−1) | |
| C2H5 CN | 4 |  |
1(−1) |  |
3(−1) |  |
1(−1) |  |
3(−1) | |
| a-(CH2OH)2 | 3 | – | – | – | – | – | – | – | – | |
| CH2 (OH)CHO | 4 |  |
7(−1) |  |
5(−1) |  |
1(−1) |  |
2(−1) | |
Notes. (a) Source property: internal luminosity (Lint), envelope mass (Menv), and ratio envelope mass over internal luminosity. (b)Number of CALYPSO sources detected or tentatively detected. Pearson correlations are evaluated for the following quantities, only when at least four sources are detected (Npts > 3): (c)column density; (d)column density times solid angle of COM emission divided by continuum flux density at 1.3 mm; (e) column density times solid angle of COM emission divided by continuum peak flux density at 3 mm; (f) column density normalized to that of CH3OH; for each type of correlation, ρ is the Pearson correlation coefficient with its 95% confidence interval, and P is the P-value. X(Y) means X × 10Y. Pearson coefficients with a confidence interval outside [−0.3, 0.3] are highlighted in bold face.
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