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Table 2.
Derived rotational temperatures and column densities for C5H4 and C4H3N isomers towards TMC-1.
| Molecule | Trot (K) | N (cm−2) |
|---|---|---|
| HCCCH2CN (a) | 4 ± 1 | 2.8 ± 0.7 × 1012 |
| CH2CCHCN (a) | 5.5 ± 0.3 | 2.7 ± 0.2 × 1012 |
| A – CH3C3N (a) | 6.7 ± 0.2 | 9.7 ± 0.3 × 1011 |
| E – CH3C3N (a) | 8.2 ± 0.6 | 7.7 ± 0.5 × 1011 |
| CH2CCHCCH (b) | 7 ± 1 | 1.2 ± 0.2 × 1013 |
| A/E – CH3C4H (b) | 7.0 ± 0.3 | 6.5 ± 0.3 × 1012 |
| HCCCH2CCH | 9.5 ± 0.5 | 5.0 ± 0.5 × 1012 |
Notes.
(a)
Values reported by Marcelino et al. (2021).
(b)
Values reported by Cernicharo et al. (2021f).
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