Table 1.
Dipole moments (μ), number of detected lines, table number listing the spectroscopic and observational line parameters, rotational temperatures (Trot) and column densities (N) obtained with the rotational diagram (RD) analysis, and physical parameters assumed for the MADEX LTE model of the new molecules detected in this work.
| RD analysis |
MADEX LTE model |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Molecule | μ | No. Lines | Table | Trot | N × 1012 | v0 | vFWHM | Trot | N × 1012 | Notes | |
| [Debye] | [K] | [cm−2] | [km s−1] | [km s−1] | [K] | [cm−2] | |||||
| A/E-CH3SH | μa = 1.3(a) | 3 | B.1 | ... | ... | −1.0 | 7.0 | 5.0 | 20 | ||
| l-C3H+ | μa = 3.0(b) | 3 | B.2 | 5 ± 1 | 1.2 ± 0.2 | −0.6 | 6.0 | 5.0 | 1.0 | ||
| C3N | μa = 2.8(c) | 4 | B.3 | 5 ± 1 | 4 ± 1 | −0.5 | 5.0 | 5.0 | 3.0 | (†) | |
| t-HCOOH | μa = 1.4(d) | 5 | B.4 | 5 ± 1 | 2.3 ± 0.5 | −0.7 | 6.0 | 5.0 | 2.3 | (*) | |
| 6 ± 1 | 3.3 ± 0.4 | −0.7 | 6.0 | 6.0 | 3.3 | ( * *) | |||||
| 6 ± 2 | ( * * * ) | ||||||||||
| CH2CHCN | μa = 3.8(e) | 7 | B.5 | 10 ± 4 | 5 ± 2 | −0.5 | 5.0 | 10 | 5.5 | ||
| o-H2CN | μa = 2.5(f) | 4 | B.6 | ... | ... | −1.0 | 5.0 | 5.0 | 4.0 | ||
| OCS | μa = 0.7(g) | 3 | B.7 | 8 ± 3 | 43 ± 15 | −0.7 | 5.5 | 8.0 | 43 | ||
| SO2 | μb = 1.6(h) | 3 | B.8 | 8 ± 1 | 25 ± 4 | −0.9 | 7.0 | 8.0 | 25 | ||
| O+-NH2CN | μa = 4.3(i) | 6 | B.9 | 30 ± 5 | 11 ± 2 | −0.9 | 7.0 | 30 | 11 | ||
Notes. (†)This slight difference in N (within the uncertainty) between the two methods is mainly caused by adapting the C3N spectroscopic values in the rotational diagram in order to address the blending of the hyperfine components (see Appendix C). (*)For the Ka = 0 ladder (see Appendix C). ( * *)For the Ka = 1 ladder (see Appendix C). ( * * * )Total column density (see Appendix C).
References. (a) Tsunekawa et al. (1989), (b) Pety et al. (2012), (c) McCarthy et al. (1995), (d) Kuze et al. (1982), (e) Kraśnicki & Kisiel (2011), (f) Cowles et al. (1991), (g) Tanaka et al. (1985), (h) Patel et al. (1979), (i) Read et al. (1986).
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