Charting circumstellar chemistry of carbon-rich asymptotic giant branch stars - II. Abundances and spatial distributions of CS

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Table 3

Modelling results.

Source	Dust modelling						CO modelling					CS modelling
Source	L_⋆ (L_⊙)	T_⋆ (K)	^R in (cm)	Ṁ_d (M_⊙ yr⁻¹)	T_c (K)	τ₁₀	Ṁ_g (M_⊙ yr⁻¹)	T₀ (K)	α	R_1/2 (cm)	Ψ (×10⁻³)	f₀	R_e (cm)
15194-5115	11 000	2500	1.20×10¹⁴	4.20×10⁻⁸	1510	1.81	2.20×10⁻⁵	1750	−0.8	3.37×10¹⁷	1.91	${3.1}_{- 1.6}^{+ 1.6} \times 10^{- 6}$ $3.1^{+1.6}_{-1.6}\times10^{-6}$	${6.8}_{- 3.9}^{+ 5.5} \times 10^{16}$ $6.8^{+5.5}_{-3.9}\times10^{16}$
15082-4808	11 500	2500	1.20×10¹⁴	7.00×10⁻⁸	1780	3.39	2.20×10⁻⁵	1000	−0.6	3.37×10¹⁷	3.18	${4.0}_{- 2.4}^{+ 3.5} \times 10^{- 6}$ $4.0^{+3.5}_{-2.4}\times10^{-6}$	${5.2}_{- 1.9}^{+ 1.6} \times 10^{16}$ $5.2^{+1.6}_{-1.9}\times10^{16}$
07454-7112	5000	3000	5.98×10¹³	1.26×10⁻⁸	1780	1.93	8.30×10⁻⁶	2250	−0.8	1.96×10¹⁷	1.52	${2.0}_{- 0.9}^{+ 1.5} \times 10^{- 6}$ $2.0^{+1.5}_{-0.9}\times10^{-6}$	${2.4}_{- 0.5}^{+ 0.6} \times 10^{16}$ $2.4^{+0.6}_{-0.5}\times10^{16}$
AFGL 3068	10 000	2100	1.50×10¹⁴	1.26×10⁻⁷	1825	6.87	4.20×10⁻⁵	1750	−0.8	4.79×10¹⁷	3.00	${3.6}_{- 3.0}^{+ 6.4} \times 10^{- 6}$ $3.6^{+6.4}_{-3.0}\times10^{-6}$	${1.8}_{- 0.9}^{+ 6.7} \times 10^{16}$ $1.8^{+6.7}_{-0.9}\times10^{16}$
IRC + 10 216	12 000	2200	1.50×10¹⁴	8.00×10⁻⁸	1675	4.07	1.50×10⁻⁵	1250	−0.8	2.67×10¹⁷	5.33	${1.4}_{- 0.7}^{+ 0.5} \times 10^{- 6}$ $1.4^{+0.5}_{-0.7}\times10^{-6}$	${6.0}_{- 1.6}^{+ 1.6} \times 10^{16}$ $6.0^{+1.6}_{-1.6}\times10^{16}$

Notes. L_⋆: stellar luminosity, T_⋆: stellar temperature, R_in: inner radius of the models (R_in = 3R_⋆), Ṁ_d: dust-MLR, T_c: dust condensation temperature, τ₁₀: dust optical depth at 10 μm, Ṁ_g: gas-MLR, T₀: gas temperature at R_in, α: exponent of gas temperature profile power law (see Eq. (3)), R_1/2 : photodissociation radius, Ψ: dust-to-gas mass ratio, f₀: peak-abundance of CS, R_e: e-folding radius of CS abundance profile.

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