Table A.2
Weeds parameters and results of the population diagram analysis.
| Moleculea | P |
Trot,Wb (K) |
Trot,PDc (K) |
Ntot,Wd (cm−2) |
Ntot,PDe (cm−2) |
∆νf (km s−1) |
νoffg (km s−1) |
NL1157-B1h (cm−2) |
|---|---|---|---|---|---|---|---|---|
| D2CO | R1 | 60 | 51 ± 15 | 2.8(13) | (2.9 ± 1.1)(13) | 4.5 | 2.0 | |
| B1 | 60 | 58 ± 41 | 1.6(13) | (2.1 ± 1.9)(13) | 4.5 | −0.5 | ||
| CH3OH | R1 | 80 | 76 ± 9 | 5.0(15) | (5.1 ± 2.3)(15) | 5.0 | 2.5 | (1.3 ± 0.3)(16) |
| B1 | 80 | 80 | 3.5(15) | (4.0 ± 1.0)(15) | 6.5 | −1.5 | ||
| CH2DOH | R1 | 100 | 100 | 4.5(14) | (6.5 ± 1.8)(14) | 3.5 | 1.5 | (2.2 ± 0.7)(14) |
| B1 | 100 | 100 | 3.0(14) | (3.6 ± 3.6)(14) | 4.5 | −1.5 | ||
| CH3CHO | R1 | 60 | 58 ± 3 | 1.5(14) | (2.0 ± 0.2)(14) | 4.5 | 2.5 | (7.0 ± 3.0)(13) |
| B1 | 60 | 64 ± 17 | 8.0(13) | (1.1 ± 0.6)(14) | 4.5 | −1.5 | ||
| HC3N | R1 | 75 | 74 ± 1 | 2.0(13) | (2.2 ± 0.1)(13) | 6.0 | 3.0 | 3.4(13) |
| B1 | 80 | 74 ± 3 | 2.8(13) | (3.6 ± 0.5)(13) | 7.0 | −2.5 | ||
| CH3CN | R1 | 90 | 91 ± 11 | 1.9(13) | (2.2 ± 0.4)(13) | 5.5 | 2.5 | 1.0(13) |
| B1 | 90 | 108±6 | 1.5(13) | (2.1 ± 0.2)(13) | 5.5 | −1.5 | ||
| NH2CHO | R1 | 80 | < 1.5(13) | 5.0 | 2.5 | 8.0(12) | ||
| B1 | 80 | < 1.5(13) | 6.5 | −1.5 |
Notes. References to spectroscopic information used for the analysis are given in Table A.3. Values in parentheses show the decimal power, where x(z) = x × 10z or (x ± y)(z) = (x ± y) × 10z.
(a)Detected molecule and vibrational state used to derive PDs. (b)Rotational temperature used for the Weeds model. (c)Rotational temperature derived from the PD. When a value has no error, it was fixed. (d)Column density used for the Weeds model. The upper limit for NH2CHO was derived by fixing all parameters to those of CH3OH. (e)Column density derived from the PD. (f)FWHM of the spectral lines. (g)Offset from 3sys = 6.8 kms−1. (h)Column densities derived from interferometric observations towards L1157-B1: CH3OH and CH3CHO (Codella et al. 2020), HC3N (Benedettini et al. 2007), CH3CN (Codella et al. 2009), CH2DOH (Fontani et al. 2014), and NH2CHO (Codella et al. 2017).
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