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Table 2.

Summary of observations and spectral line parameters for each observed position.

Position RA (J2000) Dec (J2000) Radius Line Int. intensity FWHM Vlsr ⟨rms⟩ Obs. time Tsys
[hh:mm:ss] [°:′:″] [kpc] (1 − 0) [K km s−1] [km s−1] [km s−1] [mK] [h] [K]
(1) (2) (3)
Pos-0 20:34:52.20 +60:09:14 0.0 HCN 11.12 ± 0.01 147 ± 15 56 ± 6 0.3 44.3 92
N2H+ 1.83 ± 0.01 133 ± 11 55 ± 6 0.2

Pos-1 20:35:05.70 +60:10:52 5.1 HCN 0.33 ± 0.01 32 ± 2 −32 ± 4 0.5 10.0 112
N2H+ 0.040 ± 0.008 21 ± 6 −28 ± 3 0.4

Pos-2 20:35:11.88 +60:08:51 5.7 HCN 0.39 ± 0.01 31 ± 2 −9 ± 2 0.6 8.5 116
N2H+ 0.067 ± 0.011 27 ± 5 −6 ± 2 0.5

Pos-3 20:34:22.86 +60:10:31 8.6 HCN 0.13 ± 0.01 25 ± 2 114 ± 12 0.5 13.9 108
N2H+ 0.026 ± 0.006 30 ± 8 117 ± 15 0.3

Pos-4 20:34:47.10 +60:07:59 3.3 HCN 0.26 ± 0.01 32 ± 4 126 ± 12 0.4 13.2 99
N2H+ 0.031 ± 0.007 20 ± 6 131 ± 15 0.3

Notes. (1) Average rms measured in a 4 km s−1 wide channel. (2) Total on-source time used to generate the final spectra after reduction. (3) Average system temperature during observations.

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