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Table 2

Line parameters measured from the HIFI spectra.

Line ΔV V LSR ΔV rms
K km s-1 km s-1 km s-1 mK

OH+ 10–01  < 0.80 ... ... 58
OH+ 12–01 2.3(3) 10.9(3) 5.1(6) 133
OH+ 11–01 1.2(1) 10.1(3) 4.3(5) 88
H2O+ 110–101  < 0.18 ... ... 20
H2O+ 111–000  < 1.90 ... ... 112
H3O+  < 1.17 ... ... 78
H3O+  < 2.27 ... ... 90

Notes. Numbers in parentheses are error bars in units of the last decimal. Noise levels in the last column are for a channel width of 1 MHz. Upper limits in column 2 are for ΔV = 4.3 km s-1.

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