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Interstellar $^{36}$S: a probe of s-process nucleosynthesis

R. Mauersberger·C. Henkel·N. Langer·Y. -N. Chin
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Abstract

The first detection of a $^{36}$S-bearing molecule in interstellar space is reported. The $J$=$2-1$ and $3-2$ transitions of C$^{36}$S have been observed toward eight Galactic molecular hot cores. From a comparison with other optically thin isotopic species of CS, the abundance ratio of $^{34}$S/$^{36}$S is 115$(\pm 17)$. This is smaller than the solar system ratio of 200 and supports the idea that $^{36}$S is, unlike the other stable sulfur isotopes, a purely secondary nucleus that is produced by s-process nucleosynthesis in massive stars.

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R. Mauersberger, C. Henkel, N. Langer, Y. -N. Chin. 1996-07-13. Interstellar $^{36}$S: a probe of s-process nucleosynthesis. https://arxiv.org/abs/astro-ph/9607071

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