Table 3.
Δt and the corresponding temperatures when the abundances of HC5N, HC7 N and HC9 N reach 10−12 in the two-phase model adopting different tcold values.
| tcold (yr)a | HC5 N | HC7N | HC9N | |||
|---|---|---|---|---|---|---|
| Δt (yr)b | T (K)c | Δt (yr) | T (K) | Δt (yr) | T (K) | |
| MC 1.0 × 105 | 6.97 × 104 | 33.08 | 7.72 × 104 | 38.31 | 9.96 × 104 | 57.12 |
| MC 2.0 × 105 | 6.01 × 104 | 27.16 | 7.05 × 104 | 33.61 | 7.55 × 104 | 37.08 |
| MC 3.0 × 105 | 4.78 × 104 | 20.85 | 5.60 × 104 | 24.90 | 5.81 × 104 | 26.03 |
| MC 4.0 × 105 | 4.26 × 104 | 18.62 | 5.60 × 104 | 24.90 | 5.72 × 104 | 25.54 |
| MC 5.0 × 105 | 4.55 × 104 | 19.83 | 5.67 × 104 | 25.27 | 5.97 × 104 | 26.93 |
| MC 6.0 × 105 | 4.50 × 104 | 19.62 | 5.83 × 104 | 26.14 | 5.93 × 104 | 26.70 |
| MC 7.0 × 105 | 4.53 × 104 | 19.75 | 5.79 × 104 | 25.92 | 5.96 × 104 | 26.87 |
| MC 8.0 × 105 | 4.46 × 104 | 19.45 | 5.82 × 104 | 26.09 | 6.16 × 104 | 28.02 |
| MC 9.0 × 105 | 5.07 × 104 | 22.21 | 5.87 × 104 | 26.37 | 6.29 × 104 | 28.79 |
| MC 1.0 × 106 | 4.57 × 104 | 19.92 | 5.75 × 104 | 25.70 | 6.10 × 104 | 27.67 |
| RE 1.0 × 105 | 5.40 × 104 | 23.85 | 5.68 × 104 | 25.32 | 5.96 × 104 | 26.87 |
| RE 3.0 × 105 | 5.23 × 104 | 22.99 | 5.87 × 104 | 26.37 | 5.87 × 104 | 26.37 |
Notes. (a) tcold represents the timescale of the cold phase. MC represents the Monte Carlo simulation and RE represents the rate equation calculation. (b) Δt represents the timescale from the beginning of the warm-up phase to the time when the abundance of HC5 N, HC7 N, and HC9 N begins to be over 10−12. (c) T is the temperature of the core at the time tcold + Δt.
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