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Table 4

RMS noise for all observed H2S lines from APEX survey.

H2S H234S
Star 11,0 → 10,1 22,0 → 21,1 33,0 → 32,1 11,0 → 10,1

M-type stars
R Hor 11 ... 13 11
IK Tau 18D 17T 20 18
GX Mon 20D 12 18 20
W Hya 16 ... 11 16
RR Aql 19 15 13 19
V1943 Sgr 13 ... 11 13
V1300 Aql 13D 20 15T 13T
V1111 Oph 13D ... ... 13
WX Psc 8D ... ... 8D
IRC-30398 13 ... ... 13

S-type stars
T Cet ... 13 ... ...
TT Cen 20 ... 10 20
W Aql 13 14 14 13
RZ Sgr 20 ... 13 20

Carbon stars
R Lep ... 16 ... ...
V1259 Ori 17 14 15 17
AI Vol 20 17 ... 20
X TrA ... 13 ... ...
II Lup 10* 11 10 ...
V821 Her 19 18 ... 19
RV Aqr ... 15 ... ...

Notes. RMS values given in mK at a velocity resolution of 1 km s-1. (...) indicates lines that were not observed, (D) and (T) indicate detected or tentatively detected lines, respectively (see Table 3 for integrated intensities). (*) indicates that the APEX observation is from De Beck et al. (in prep.).

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