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Table 1

Spectroscopic information for the lines of CH3CCH detected in IRAS 16293.

Transition Frequency Eu Aij Tpeak IRAS 16293A Tpeak IRAS 16293B
(GHz) (K) (s−1) K K
6 3–5 3 102.53035 82 2.67 × 10−6 5.54 10.10
6 2–5 2 102.54015 46 3.16 × 10−6 4.93 8.66
6 1–5 1 102.54602 24 3.46 × 10−6 6.76 11.50
6 0–5 0 102.54798 17 3.56 × 10−6 7.49 12.60
20 6–19 6 341.50702 432 1.26 × 10−4 1.66 4.48
20 5–19 5 341.57846 353 1.30 × 10−4 2.06 5.09
20 4–19 4 341.63695 288 1.34 × 10−4 4.28 9.66
20 3–19 3 341.68247 237 1.36 × 10−4 14.10 28.10
20 2–19 2 341.71499 201 1.38 × 10−4 10.90 21.60
20 1–19 1 341.73451 179 1.39 × 10−4 13.70 26.00
20 0–19 0 341.74102 172 1.39 × 10−4 14.70 27.60
21 6–20 6 358.57236 449 1.48 × 10−4 1.54 4.22
21 5–20 5 358.64734 370 1.52 × 10−4 1.90 4.77
21 4–20 4 358.70873 305 1.55 × 10−4 3.93 9.07
21 3–20 3 358.75650 254 1.58 × 10−4 13.00 26.60
21 2–20 2 358.79063 218 1.60 × 10−4 10.10 20.30
21 1–20 1 358.81112 197 1.61 × 10−4 12.60 24.50
21 0–20 0 358.81795 189 1.61 × 10−4 13.60 26.10

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