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Table 5

Extracted rotational temperatures and column densities.

Rotational temperature [K] H2 column densitya [1021 cm-2] Kinetic temperatureb [K] X constant c
Source 12CO 13CO C18O from 13CO from C18O Blue wing Red wing ×10-8
L1448-MM 81 ± 10 46 ± 7 39 ± 6 5.0 ± 0.7 4.4 ± 0.6 60–75 100–200 2.1
NGC 1333-IRAS 2A 57 ± 7 46 ± 6 39 ± 6 6.8 ± 0.9 9.2 ± 1.3 ... ... 6.0
NGC 1333-IRAS 4A 77 ± 9 43 ± 5 39 ± 5 10.6 ± 1.3 6.5 ± 0.8 70–80 80–110 1.4
NGC 1333-IRAS 4B 83 ± 11 48 ± 7 34 ± 5 2.4 ± 0.4 9.0 ± 1.4 110–170 110–280 1.5
L1527 62 ± 8 38 ± 5 31 ± 5 6.0 ± 0.8 5.5 ± 0.8 80–130 80–110 14.0
Ced110-IRS4 66 ± 9 42 ± 16 <33 3.0 ± 1.1 <7.8 ... ... 17.0
BHR71 72 ± 13 62 ± 21 36 ± 7 1.7 ± 0.6 5.0 ± 1.0 75–105 70–140 8.5
IRAS15398 104 ± 16 60 ± 12 35 ± 5 0.9 ± 0.2 3.8 ± 0.7 ... ... 3.5
L483 77 ± 10 43 ± 6 39 ± 6 4.5 ± 0.6 4.0 ± 0.6 105–300 100–240 6.0
Ser SMM1 97 ± 12 60 ± 8 50 ± 5 12.7 ± 1.7 10.1± 1.1 90–120 100–230 2.2
Ser SMM4 71 ± 10 43 ± 7 36 ± 7 9.2 ± 1.6 8.8 ± 1.6 75–120 50–120 6.0
Ser SMM3 74 ± 9 37 ± 5 32 ± 4 19.8 ± 2.8 12.7± 1.8 75–175 80–260 10.0
L723 71 ± 13 43 ± 5 34 ± 5 4.6 ± 0.6 2.8 ± 0.4 ... ... 4.4
B335 71 ± 9 46 ± 6 34 ± 5 3.0 ± 1.7 3.6 ± 0.5 ... ... 9.0
L1157 62 ± 8 50 ± 8 35 ± 6 3.4 ± 0.5 2.1 ± 0.3 75–130 85–120 2.4
L1489 75 ± 9 49 ± 10 <37 3.5 ± 0.7 <3.7 ... ... 17.0
L1551-IRS5 68 ± 10 53 ± 8 39 ± 6 10.7 ± 1.5 11.3 ± 1.8 70–130 70–130 8.0
TMR1 94 ± 12 56 ± 11 <35 3.1 ± 0.6 < 4.9 ... ... 38.0
TMC1A 49 ± 6 52 ± 11 <37 1.4 ± 0.3 <3.4 ... ... 17.0
TMC1 68 ± 9 53 ± 11 <33 1.1 ± 0.2 <6.0 ... ... 50.0
HH46-IRS 61 ± 7 41 ± 7 <33 7.1 ± 1.1 <8.0 100–130 105–300 9.0
DK Cha 68 ± 10 62 ± 10 <38 3.2 ± 0.5 <3.6 ... ... 7.0
GSS30-IRS1 77 ± 11 45 ± 6 35 ± 5 37.0 ± 5.1 24.0 ± 3.7 160–300 130–240 45.0
Elias 29 103 ± 14 49 ± 7 39 ± 6 19.1 ± 2.7 31.1 ± 4.4 340–400 340–400 50.0
Oph-IRS63 50 ± 7 42 ± 8 <40 4.6 ± 0.9 <2.4 ... ... 40.0
RNO91 65 ± 9 35 ± 5 <39 5.2 ± 0.8 <2.9 ... ... 12.0

Notes.Rotational temperatures and column densities calculated from 12CO, 13CO and C18O observations. Kinetic temperatures calculated from blue and red line wings.

(a)

In H2 column densities. Derived using a constant abundance ratio of CO/H2 = 10-4.

(b)

Obtained from CO 10−9/3−2 line intensity ratios as explained in Sect. 4.5.

(c)

Constant abundance fits as explained in Sect. 6.1.

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