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Table 4
Spatial extent of different transitions of CH3CCH towards each hot corino in the IRAS 16293 system.
| Transition | Eup | Spatial extent (a) |
|---|---|---|
| IRAS 16293A | ||
| CH3CCH 6 1–5 1 | 24 K | 1.7″ 233 au |
| CH3CCH 6 3–5 3 | 82 K | 1.5″ 214 au |
| CH3CCH 21 2–20 2 | 218 K | 1.4″ 200 au |
| CH3CCH 20 3–19 3 | 237 K | 1.3″ 185 au |
| IRAS 16293B | ||
| CH3CCH 6 1–5 1 | 24 K | 1.9″ 259 au |
| CH3CCH 6 3–5 3 | 82 K | 1.5″ 203 au |
| CH3CCH 21 2–20 2 | 218 K | 1.1″ 148 au |
| CH3CCH 20 3–19 3 | 237 K | 1.0″ 145 au |
Notes. (a) The spatial extent in au is calculated for a source distance of 141 pc as determined by Dzib et al. (2018).
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