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Table 6

Derived Tkin from line ratios averaged over H2 density range.

System c-C3 H2 a c-C3 H2 a H2 COa DCO+a 13COa 13COa 13COa
6–5 / 33,0–22,1 51,4–42,3 / 33,0–22,1 32,2–22,1 / 30,3–20,2 5–4 / 3–2 6–5/3–2 10–9/3–2 10–9/6–5
Tkin (K) Tkin (K) Tkin (K) Tkin (K) Tkin (K) Tkin (K) Tkin (K)

Wide multiples
L1448N 18 ± 2 20 ± 3 30 ± 2 19 ± 3 30 ± 3 58 ± 7 86 ± 16
SVS 13 30 ± 6 22 ± 4 31 ± 1 26 ± 8
Per63 <180 <29
Per52 11 ± 1 <10 <61 <21
IRAS 7 18 ± 2 54 ± 30 24 ± 1 17 ± 3 42 ± 3 51 ± 6 51 ± 7
B1-b 11 ± 1 10 ± 7 <25 21 ± 5
Per8+Per55 33 ± 2 50 ± 6 66 ± 10

Close binaries
IRAS 1 22 ± 3 81 ± 49 <64 25 ± 8 33 ± 3 50 ± 6 65 ± 10
IRAS 03282 <180 <26
IRAS 03292 <20b <57b

Singles

IRAS 03271 <51
Per25 <23
SK1 <35 <13 <27 <51

Notes. (a) Assuming a H2 density range of 105 –106 cm−3. (b) Kinetic temperatures are for the 6–5/4–3 and 10–9/4–3 ratios.

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