Molecular abundances in the inner layers of IRC +10216

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Table 11

Isotopic ratios in IRC +10216.

Isotopic ratio	Value	Literature	Solar^g

¹²C/¹³C	35 ± 3.5^a	45 ± 3^e	89.4
³²S/³⁴S	22 ± 2.5^b	21.8 ± 2.6^e	22.1
³²S/³³S	112 ± 12^b	121 ± 21^e	124.9
²⁸Si/²⁹Si	18 ± 2^c	> 15.4^e	19.7
²⁸Si/³⁰Si	27 ± 3.0^c	> 22.3^e	29.9
³⁵Cl/³⁷Cl	2.9 ± 0.3^d	2.3 ± 0.24^e	3.13
		3.3 ± 0.3^f

Notes.

^(a)

From CS;

^(b)

from SiS;

^(c)

from SiO and SiS;

^(d)

from NaCl, KCl, and AlCl;

^(e)

Kahane et al. (2000) and Cernicharo et al. (2000);

^(f)

Agúndez et al. (2011);

^(g)

Asplund et al. (2009).

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