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Table 3

Calculation results for model with whole-grain heating induced chemical reactions in ices.

Ice, 1.35 Myr
Species Abund. Ratio Species Abund. Ratio Species Abund. Ratio Species Abund. Ratio

C8H2 2.4E-13 15.0 C4H2 9.5E-10 3.43 C2H6 3.9E-08 1.40 HCN 1.6E-08 1.11
C6H6 3.5E-13 12.0 HC2NC 1.5E-12 3.05 C2H4 1.4E-08 1.30 O2 6.1E-10 1.09
HC7N 4.0E-14 11.7 HC3N 3.6E-10 2.71 CH3NH2 4.1E-08 1.21 NH3 2.0E-05 1.03
C7H2 1.6E-12 9.55 CH3CHO 2.6E-13 2.25 O3 2.4E-12 1.20 H2S 6.3E-07 1.01
CH3C4H 2.7E-12 9.02 CH3CN 3.2E-09 1.84 HNC 1.3E-08 1.18 H2O 1.3E-04 1.00
CH3C5N 1.4E-13 7.40 H2C3O 6.1E-12 1.78 NH2 1.2E-07 1.15 CO2 4.8E-05 0.998
C6H2 1.2E-11 6.45 H2CCO 2.1E-11 1.64 OCS 1.7E-08 1.13 CO 9.0E-05 0.994
C4H4 1.4E-11 6.31 C3H4 1.1E-09 1.64 N2H2 1.6E-08 1.13 H2O2 2.2E-06 0.994
HC5N 2.6E-12 4.95 CH3OCH3 3.3E-12 1.62 CS 2.1E-09 1.12 N2 2.6E-05 0.985
CH3C3N 2.7E-11 3.71 C2H5OH 3.3E-12 1.62 SO2 6.1E-10 1.12 S2 1.9E-12 0.851
C2H2 8.7E-10 3.58 HNCO 1.4E-09 1.46

Gas, 1.388 Myr
H2CCO 3.3E-12 2.55 CH3NH2 1.2E-12 1.87 CH4 6.0E-08 1.61 HNC 3.1E-10 1.26
H2CO 4.3E-11 2.18 CO2 1.7E-08 1.82 C2H2 9.4E-11 1.51 HCN 5.1E-10 1.25
H2S 1.4E-12 2.09 N2O 1.5E-12 1.80 C2H6 2.1E-12 1.48 HNO 3.8E-11 1.16
OCS 1.1E-12 1.97 C2 5.5E-12 1.65 C2H2N 1.7E-12 1.37 CO 1.2E-05 1.04
C3H2 1.7E-12 1.90 H2O 1.7E-11 1.64 NO 1.5E-11 1.31 O2 5.7E-10 0.898

Notes. Molecular abundances, relative to hydrogen, for selected ice and gas species, and the abundance ratio, relative to the reference model, are shown.

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