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Table 6

Isotopic ratios calculated from single and double isotopologues of SiS.

Source Isotopologues Ratio
GY Aql 29 Si/30Si 1.3 ± 0.3
IRC+10011 29 Si/30Si 1.7 ± 0.1
IRC-10529 29 Si/30Si 1.2 ± 0.1
π1 Gru 29Si/30Si 0.9 ± 0.5
VX Sgr 29Si/30Si 4 ± 1
W Aql 29 Si/30Si 1.5 ± 0.5

W Aql 33S/34S 0.4 ± 0.3

IRC+10011 34S/32S 0.11 ± 0.06
IRC-10529 34S/32S 0.04 ± 0.02
W Aql 34S/32S 0.06 ± 0.02

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