Open Access

Table 9

Comparison of isotope ratios at different galactocentric distances. Given are percentage enhancements.

CMZ CMZ Inner disk Local ISM
Inner disk Outer Galaxy Outer Galaxy Solar System
12C/13C 68 ± 33 176 ± 54 64 ± 21 65 ± 31

16O/18O 24±9 138 ± 61 91 ± 43 −12±5
16O/17O 32±8 236 ± 111 155 ± 73 20 ± 13

32S/34S −5 ± 11 47 ± 10 56 ± 18 −4±17
32S/33S 17±8 50 ± 16 28 ± 6 44 ± 34
32S/36S 169 ± 50 369±125 74 ± 31 64 ± 27

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