Effects of the grain temperature distribution on the organic chemistry of protostellar envelopes

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Table 2

Models with a different T_d dependence on the grain size and physical conditions in the prestellar stage.

Model ^(a)	y in Eq. (1)	T_d,0.037 ^(b), K	T_d,0.232 ^(b), K
M-1/6	−1/6	118	87
M0	0	100	100
M1/6	1/6	85 ^(c)	115

Model ^(d)	n_fin, cm⁻³	T_max, K	f_CR

COMs	10⁸	200	0.1
WCCC	10⁶	50	1.0

Notes. ^(a)See Sect. 2.2. ^(b)Example T_d,0.037 and T_d,0.232, when T_gas=100 K. ^(c)T_d,0.037 can be higher by 2...6 K because of the increase by ≈50% in the grain radius due to the icy mantle. ^(d)See Sect. 2.3.

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