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Table 2

All considered species and isotopologues.

Species Isotopologues
CO CO , 13CO , C18O , C17O , 13C18O
c - C3H2 c - C3H2
C2H C2H , C2D
CF+ CF+
CH3CCH CH3CCH
CH3CN CH3CN
CH3OH CH3OH
CN CN, 13CN
CS CS, 13CS , C34S , C33S
HCCCN HCCCN
HCN HCN, DCN, H13CN , HC15N
HCO HCO
HCO+ HCO+ , DCO+ , H13CO+ , HC18O+ , HC17O+
HCS+ HCS+
HDO HDO
H2CCO H2CCO
H2CO
H2CS H2CS , HDCS , H2C34S
H2S H2S
HNC HNC, DNC, HN13C
HNCO HNCO
N2H+ N2H+ , N2D+
NO NO
NS NS
OCS OCS
SiO SiO, 29SiO , 30SiO
SO SO, 34SO
SO+ SO+
SO2 SO2

Notes. Summary of the species and isotopologues used for our analysis. A List of all transitions is found in Appendix A.1

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