Table 2
Excitation temperature (Tex), column density (Ntot), the abundance ratio, N(CH3CCH)/N(H2), FWHM, and peak velocity (Vpeak) in IRAS 16293B and IRAS 16293A.
| Source | Tex | Ntot | N(CH3CCH) (a) | FWHM | Vpeak |
|---|---|---|---|---|---|
| (K) | (cm−2) | N(H2) | km s−1 | km s−1 | |
| IRAS 16293A | 90 ± 30 | 7.8 ± 1.0 × 1015 | 1.2 × 10−9 | 2.0 ± 0.2 | 1.0 ± 0.2 |
| IRAS 16293B | 100 ± 20 | 6.8 ± 0.2 × 1015 | <5.7 × 10−10 | 1.0 ± 0.2 | 2.5 ± 0.2 |
Notes. (a) H2 column densities are based on the values determined in Jørgensen et al. (2016) towards IRAS 16293B (>1.2 × 1025 cm−2) and values determined in Calcutt et al. (2018a) towards IRAS 16293A (6.3 × 1024 cm−2).
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