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Table 3

Column densities and abundances of SiO, SO, and C18O based on LTE analysis.

Tex [SO] N[SO] N[SiO] N[C18O] N[SO]/N[H2] N[SiO]/N[H2]
Position (K) (1014 cm−2) (1012 cm−2) (1015 cm−2) (10−8) (10−9)
Continuum peak 38.7(10) 16.96(11) 16.2(6) 12.2(6) 2.36(11) 0.23(1)
SiO-peak 35.3(8) 2.98(16) 35.2(6) 5.8(3) 0.88(6) 1.04(4)
(narrow component) 32.9(4) 1.32(5) <0.09 1.3(1) 1.77(12) <0.013
SiO-N 26.7(2) 0.86(3) 6.1(2) 2.9(1) 0.50(3) 0.35(2)
NE-cloud 11.3(3) 0.70(48) 12.8(8) <0.08 >14.2 >26
SE-blob 20.4(2) 1.05(11) 2.6(3) 1.6(1) 1.11(13) 0.28(3)
NE-blob 15.0(2) 0.30(7) 3.0(2) 1.8(1) 0.29(7) 0.28(2)
S-blob 13.9(1) 0.50(9) 1.7(2) 1.0(1) 0.89(19) 0.30(5)
W-blob 24.9(5) 0.38(4) 1.8(2) 0.9(1) 0.69(13) 0.33(7)

Notes. Numbers in parenthesis represent the errors in unit of the last significant digits (1σ). Parameters are derived from the spectra averaged over the 0.5′′ × 0.5′′ area. The abundance ratio of N[C18O]/N[H2] is assumed to be 1.7 × 10−7 (Frerking et al. 1982).

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