Table 2
Column densities and abundance ratios of HC2NC and HNC3 derived for TMC-1, L1544, and L483.
| TMC-1 | L1544 | L483 | |
|---|---|---|---|
| HC2NC (1012 cm−2) | 1.0−1.7 | 0.7−1.2 | 0.5−1.8 |
| 3.0 ± 0.3(a) | 0.85−2.2(b) | 0.57± 0.28 (c) | |
| HNC3 (1011 cm−2) | 1.8−2.7 | 1.0−3.0 | 0.8−3.5 |
| 5.2 ± 0.3(a) | 0.75−2.0(b) | 0.50 ± 0.25(c) | |
| N(HC2NC)/N(HNC3) | 5.5−6.3 | 4.3−7.0 | 5.1−6.3 |
| 5.5(a) | 4.3−29.3 (b) | 11.4(c) | |
| ~8(d) | ~1(e) | – |
Notes. For each line, the first and second entries (and third for the ratios) represent our results and those quoted from the literature, respectively. (a) Derived from the observations of Cernicharo et al. (2020a). (b) Derived from the observations of Vastel et al. (2018a). (c) Derived from the observations of Agúndez et al. (2019). (d) Derived from the chemical model of Osamura et al. (1999).(e) Derived from the chemical model of Vastel et al. (2018a).
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