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

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Table 4

Peak abundances of ¹³CS and C³⁴S and CS isotopic ratios.

Source	f₀ (¹³CS)	f₀ (C³⁴S)	¹²CS/¹³CS	C³²S/C³⁴S
IRAS 15194-5115	4.2×10⁻⁷	1.1×10⁻⁷	${7.4}_{- 3.8}^{+ 2.1}$ $7.4^{+2.1}_{-3.8}$	${29.5}_{- 15.2}^{+ 8.6}$ $29.5^{+8.6}_{-15.2}$
IRAS 15082-4808	6.7×10⁻⁸	1.4×10⁻⁷	$60_{- 36}^{+ 43}$ $60^{+43}_{-36}$	${28.0}_{- 16.8}^{+ 20.3}$ $28.0^{+20.3}_{-16.8}$
IRAS 07454-7112	6.7×10⁻⁸	9.5×10⁻⁸	$30_{- 13}^{+ 22}$ $30^{+22}_{-13}$	${21.0}_{- 9.0}^{+ 15.7}$ $21.0^{+15.7}_{-9.0}$
AFGL 3068	5.5×10⁻⁸	6.0×10⁻⁸	$65_{- 31}^{+ 31}$ $65^{+31}_{-31}$ †	${60.0}_{- 28.3}^{+ 28.3}$ $60.0^{+28.3}_{-28.3}$ †
IRC +10 216	3.8×10⁻⁸	7.4×10⁻⁸	$37_{- 18}^{+ 10}$ $37^{+10}_{-18}$	${19.0}_{- 9.2}^{+ 5.4}$ $19.0^{+5.4}_{-9.2}$

Notes. ^†The CS isotopic ratios for AFGL 3068 are poorly constrained due to the degeneracy between the fit parameters in the ¹²CS modelling (see text).

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