Online Material

Appendix A: Online Figures

$\begin{figure} \par\includegraphics[width=14cm,clip]{13501fgA1n.eps} \end{figure}$	Figure A.1: Observed lines (offseted histogram) and model (thin curves) of O¹³CS, ¹⁸OCS, O¹³C³⁴S, ¹⁷OCS, and OC³⁶S. A $v_{\rm LSR}$ of 9 km s^-1 is assumed.
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$\begin{figure} \par\includegraphics[width=14cm,clip]{13501fgA2n.eps} \end{figure}$	Figure A.2: Left panelshows the OCS J = 18-17 line at different positions. The right panel map shows the total integrated intensity of this transition; the interval of contours is 10 K km s^-1, and the minimum contour is 40 K km s^-1.
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$\begin{figure} \par\includegraphics[width=6cm,clip]{13501fgA3.eps} \end{figure}$	Figure A.3: Observed lines (histogram) and model (thin curves) of HCS⁺. A $v_{\rm LSR}$ of 9 km s^-1 is assumed.
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$\begin{figure} \par\includegraphics[width=14cm,clip]{13501fgA4.eps} \end{figure}$	Figure A.4: Observed lines (histogram) and model (thin curves) of H₂CS. A $v_{\rm LSR}$ of 9 km s^-1 is assumed.
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$\begin{figure} \par\includegraphics[width=14cm,clip]{13501fgA5.eps} \end{figure}$	Figure A.5: Observed lines (histogram) and model (thin curves) of H₂C³⁴S. A $v_{\rm LSR}$ of 9 km s^-1 is assumed.
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$\begin{figure} \par\includegraphics[width=14cm,clip]{13501fgA6.eps} \end{figure}$	Figure A.6: H₂¹³CS observed (offseted histogram) and modeled (continuum curves) lines. A $v_{\rm LSR}$ of 9 km s^-1 is assumed.
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$\begin{figure} \par\includegraphics[width=14cm,clip]{13501fgA7.eps} \end{figure}$	Figure A.7: HDCS observed (histogram) and modeled (thin curves) lines. A $v_{\rm LSR}$ of 9 km s^-1 is assumed.
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$\begin{figure} \par\includegraphics[width=14.5cm,clip]{13501fgA8.eps} \end{figure}$	Figure A.8: Observed lines (offseted histogram) and modeled (thin curves) of CS, CS isotopologues, and CS $\textit {v} = 1$ . A $v_{\rm LSR}$ of 9 km s^-1 is assumed.
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Table B.1: OCS isotopologues and OCS vibrationally excited velocity components.

Table B.2: HCS⁺ Observed line parameters.

Table B.3: H₂CS observed line parameters.

Table B.4: H₂CS and its isotopologues velocity components.

Table B.5: CS observed line parameters.

Table B.6: CS and CS isotopologues velocities.

Table B.7: CCS observed lines parameters.

Table B.8: CCCS observed lines parameters.

Table B.9: Isotopologue ratios.

Table B.10: Molecular abundances.