The abundance of (28)Si(32)S, (29)Si(32)S, (28)Si(34)S, and (30)Si(32)S in the inner layers of the envelope of IRC+10216.

The abundance of (28)Si(32)S, (29)Si(32)S, (28)Si(34)S, and (30)Si(32)S in the inner layers of the envelope of IRC+10216.