Formaldehyde as a densitometer and thermometer in Cygnus-X, the GLOSTAR pilot region, and M8 - Utilizing the H2CO ground-state transition

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Table C.1

Volume density, gas kinetic temperature, H₂CO column density, and number of lines used during modeling for all sources.

Source	log(n(H2) / cm³)	log(T_kin / K)	log(N(H₂CO) / cm²)	No. of lines
C09-1	${5.15}_{0.14}^{0.13}$ $Mathematical equation: $5.15_{0.14}^{0.13}$$	${1.64}_{0.10}^{0.10}$ $Mathematical equation: $1.64_{0.10}^{0.10}$$	${13.69}_{0.05}^{0.05}$ $Mathematical equation: $13.69_{0.05}^{0.05}$$	4(0)
DR21-12	${4.80}_{0.18}^{0.18}$ $Mathematical equation: $4.80_{0.18}^{0.18}$$	${1.57}_{0.16}^{0.14}$ $Mathematical equation: $1.57_{0.16}^{0.14}$$	${13.69}_{0.08}^{0.10}$ $Mathematical equation: $13.69_{0.08}^{0.10}$$	3(2)
DR21-19	${4.78}_{0.19}^{0.18}$ $Mathematical equation: $4.78_{0.19}^{0.18}$$	${1.53}_{0.14}^{0.12}$ $Mathematical equation: $1.53_{0.14}^{0.12}$$	${13.52}_{0.08}^{0.10}$ $Mathematical equation: $13.52_{0.08}^{0.10}$$	4(0)
N03-2	${4.95}_{0.26}^{0.28}$ $Mathematical equation: $4.95_{0.26}^{0.28}$$	${1.32}_{0.21}^{0.18}$ $Mathematical equation: $1.32_{0.21}^{0.18}$$	${13.20}_{0.09}^{0.10}$ $Mathematical equation: $13.20_{0.09}^{0.10}$$	3(3)
N05-6	${5.17}_{0.10}^{0.10}$ $Mathematical equation: $5.17_{0.10}^{0.10}$$	${1.63}_{0.06}^{0.07}$ $Mathematical equation: $1.63_{0.06}^{0.07}$$	${13.19}_{0.05}^{0.04}$ $Mathematical equation: $13.19_{0.05}^{0.04}$$	4(0)
N1	${5.43}_{0.17}^{0.22}$ $Mathematical equation: $5.43_{0.17}^{0.22}$$	${1.55}_{0.11}^{0.10}$ $Mathematical equation: $1.55_{0.11}^{0.10}$$	${14.26}_{0.05}^{0.06}$ $Mathematical equation: $14.26_{0.05}^{0.06}$$	4(0)
N10	${5.12}_{0.12}^{0.11}$ $Mathematical equation: $5.12_{0.12}^{0.11}$$	${1.65}_{0.06}^{0.07}$ $Mathematical equation: $1.65_{0.06}^{0.07}$$	${13.81}_{0.05}^{0.05}$ $Mathematical equation: $13.81_{0.05}^{0.05}$$	4(0)
N11	${5.25}_{0.11}^{0.11}$ $Mathematical equation: $5.25_{0.11}^{0.11}$$	${1.67}_{0.07}^{0.08}$ $Mathematical equation: $1.67_{0.07}^{0.08}$$	${13.37}_{0.04}^{0.04}$ $Mathematical equation: $13.37_{0.04}^{0.04}$$	4(0)
N12	${5.36}_{0.37}^{0.97}$ $Mathematical equation: $5.36_{0.37}^{0.97}$$	${1.32}_{0.13}^{0.33}$ $Mathematical equation: $1.32_{0.13}^{0.33}$$	${14.76}_{0.20}^{0.43}$ $Mathematical equation: $14.76_{0.20}^{0.43}$$	4(0)
N12-4	${5.23}_{0.21}^{0.27}$ $Mathematical equation: $5.23_{0.21}^{0.27}$$	${1.38}_{0.21}^{0.16}$ $Mathematical equation: $1.38_{0.21}^{0.16}$$	${12.99}_{0.07}^{0.07}$ $Mathematical equation: $12.99_{0.07}^{0.07}$$	3(2)

Notes. The number of lines indicate how many of the four H₂CO transitions are utilized. 3(2) indicates the third line is H₂CO (3_2,2 −2_2,1) and 3(3) indicates third line is H₂CO (3_2,1 − 2_2,0). The full table is available at CDS.

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