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Table B.2

Formaldehyde.

G35.20 A G35.20 B1 G35.20 B2 G35.20 B3 G35.03 A
Transition Frequency FWHM T peak FWHM T peak FWHM T peak FWHM T peak FWHM T peak
(MHz) (km s-1) (K) (km s-1) (K) (km s-1) (K) (km s-1) (K) (km s-1) (K)

H2C18O

51,5–41,4 o 335 815 4.9 ± 0.2 3.7 ± 0.1 2.3 ± 0.1 5.7 ± 0.2 1.6 ± 0.2 3.0 ± 0.2 2.23 ± 0.03 16.4 ± 0.1 3.4 ± 0.1 2.65 ± 0.08
54,2–44,1 p 346 984 4.4 ± 0.2 8.6 ± 0.2 2.2 ± 0.2 2.1 ± 0.2 1.7 ± 0.2 2.0 ± 0.2 2.4 ± 0.2 5.8 ± 0.1 blended
53,3–43,2 o 347 133 6.4 ± 0.1 6.93 ± 0.09 2.2 ± 2.0 2.1 ± 2.0 2.1 ± 0.4 1.9 ± 0.2 2.46 ± 0.04 9.7 ± 0.1 blended
53,2–43,1 o 347 144 blended 1.5 ± 0.2 3.3 ± 0.2 3.1 ± 0.5 1.1 ± 0.1 1.78 ± 0.06 6.8 ± 0.2 blended
52,3–42,2 p 348 032 5.6 ± 0.1 5.36 ± 0.09 1.7 ± 0.2 2.6 ± 0.1 1.3 ± 0.6 1.4 ± 0.3 2.08 ± 0.05 7.2 ± 0.1 4.1 ± 0.3 2.5 ± 0.1

HDCO

51,4–41,3 335 097 6.6 ± 1.0 8.3 ± 0.4 2.90 ± 0.08 11.6 ± 0.2 1.77 ± 0.10 6.9 ± 0.4 2.6 ± 0.1 32.3 ± 0.6 <3σ

D2CO

134,9–142,12 338 016 1.6 ± 0.2 0.48 ± 0.04 <3σ <3σ <3σ <3σ
62,5–52,4 349 630 blended 1.2 ± 0.9 0.8 ± 0.1 1.7 ± 0.3 0.54 ± 0.08 2.39 ± 0.09 5.6 ± 0.1 <3σ

Notes. Partially blended with other lines, double peaked.

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