Derived SiO and SiS abundances for five carbon stars via 1D non-LTE RT modeling of ALMA data show SiO levels ~5x higher than IRC+10216, similar SiS, good model match for SiO but overpredicted SiS radii, implying underestimated SiS photodissociation rate.
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Charting circumstellar chemistry of carbon-rich asymptotic giant branch stars. III. SiO and SiS abundances
Derived SiO and SiS abundances for five carbon stars via 1D non-LTE RT modeling of ALMA data show SiO levels ~5x higher than IRC+10216, similar SiS, good model match for SiO but overpredicted SiS radii, implying underestimated SiS photodissociation rate.