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Table B.3

Computed column densities and abundance ratios in Band 3, assuming Tex = 100 K.

B1-c
Band 3
Species Tex (K) N (cm−2) X/CH3OH (%)
CH3OH – (6.7 ± 1.1) × 1017 ≡100
13CH3OH [100] (9.6 ± 1.6) × 1015 ≡1.43
CHOH [100] <2.2 × 1016 <3.4
CH2DOH [100] (5.7 ± 0.7) × 1016 8.4 ± 1.7
CH3CH2OH [100] (1.8 ± 0.2) × 1016 2.7 ± 0.5
CH3CHO [100] (4.7 ± 1.6) × 1015 0.7 ± 0.3
CH3OCHO [100] (1.6 ± 0.2) × 1016 2.4 ± 0.5
CH3OCH3 [100] (1.9 ± 0.1) × 1016 2.8 ± 0.5
CH3COCH3 [100] <5.0 × 1016 <7.5
aGg’(CH2OH)2 [100] <2.1 × 1016 <3.2
gGg’(CH2OH)2 [100] <2.1 × 1016 <3.2
CH2OHCHO [100] <8.0 × 1015 <1.2
t-HCOOH [100] (4.3 ± 0.7) × 1015 0.6 ± 0.2
S68N
Band 3
Species Tex (K) N (cm−2) X/CH3OH (%)
CH3OH – (2.1 ± 0.7) × 1017 ≡100
13CH3OH [100] (3.0 ± 1.0) × 1015 ≡1.43
CHOH [100] <2.0 × 1016 <9.8
CH2DOH [100] <1.0 × 1017 <49
CH3CH2OH [100] <2.0 × 1016 <9.8
CH3CHO [100] <2.9 × 1014 <0.14
CH3OCHO [100] (4.7 ± 0.3) × 1015 2.3 ± 0.8
CH3OCH3 [100] (6.0 ± 0.3) × 1015 2.9 ± 1.0
CH3COCH3 [100] <5.0 × 1016 <25
aGg’(CH2 OH)2 [100] <4.3 × 1016 <21
gGg’(CH2 OH)2 [100] <4.3 × 1016 <21
CH2 OHCHO [100] <1.6 × 1016 <7.8
t-HCOOH [100] <5.0 × 1015 <2.5
B1-bS
Band 3
Species Tex (K) N (cm−2) X/CH3OH (%)
CH3 OH – (1.1 ± 0.3) × 1017 ≡100
13CH3 OH [100] (1.6 ± 0.4) × 1015 ≡1.43
CHOH [100] <1.0 × 1016 <8.9
CH2 DOH [100] <2.0 × 1016 <18
CH3 CH2 OH [100] <2.0 × 1016 <18
CH3 CHO [100] (1.4 ± 0.2) × 1015 1.2 ± 0.3
CH3 OCHO [100] (5.7 ± 0.7) × 1015 5.0 ± 1.3
CH3 OCH3 [100] (1.2 ± 0.1) × 1016 11 ± 3
CH3 COCH3 [100] <1.0 × 1016 <8.9
aGg’(CH2 OH)2 [100] <1.1 × 1016 <9.6
gGg’(CH2 OH)2 [100] <2.1 × 1016 <19
CH2 OHCHO [100] <8.0 × 1015 <7.2
t-HCOOH [100] <1.0 × 1016 <8.9

Notes. The column density of CH3 OH is determined by scaling 13CH3OH using 12C∕13C = 70. A value between squared brackets means the parameter was fixed to that value during the computation. Abundance ratios which are set to their respective isotope ratio are indicated with a ≡ symbol.

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