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Table 2

Observed NH2 transitions towards W31C, W49N, W51, and G34.3+0.1, resulting continuum intensities, and noise levels.

Sym. Freq.a Transition θmb ηmb El Eu TCb 1σ/TCc
W31C W49N W51 G34.3 W31C W49N W51 G34.3
(GHz) N Ka,Kc J (″) (K) (K) (K) (K) (K) (K)
ortho 648.78423 21,1 3/2−20,2 3/2 32 0.65 89.4 120 0.84 1.2 1.4 1.2 0.013 0.008 0.014 0.008
ortho 907.43278 20,2 5/2−11,1 3/2 23 0.63 45.7 89.3 2.4 3.2 3.5 3.0 0.010 0.008 0.010 0.013
ortho 952.57835 11,1 3/2−00,0 1/2 22 0.63 0 45.7 2.7 3.7 3.9 3.3 0.017 0.018 0.018 0.021
ortho 1 012.43614 42,2 9/2−41,3 9/2 21 0.62 350 399 3.3 ... ... ... 0.002 ... ... ...
para 1 443.62839 21,25/2−10,13/2 15 0.59 30.4 99.7 5.2 7.5 6.6 5.8 0.012 0.012 0.013 0.017

Notes. HIFI consists of seven mixer bands and two double-sideband spectrometers. The 649 transition was observed in the upper sideband of band 2a, the 907 and 953 GHz lines in the upper sideband of band 3b, and para-NH2 in the lower sideband of band 6a.

(a)

The frequencies were taken from the Cologne Database for Molecular Spectroscopy (CDMS) and refer to the strongest nuclear hyperfine component (hfs) in order to convert frequencies to Doppler velocities relative to the local standard at rest VLSR. All hfs components can be found in Tables. B.2-B.6.

(b)

The single-sideband (SSB) continuum intensity not corrected for beam efficiency.

(c)

Rms noise at a resolution of 0.5 km s-1 divided by TC.

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