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This article has an erratum: [https://doi.org/10.1051/0004-6361/201116631e]

Table A.2

Observed transitions and technical parameters.

Molecular Frequency HPBW Δva Bandwidtha
transition (GHz) (′′) (km s-1) (km s-1)
N2H+ (1−0) 93.17376b 26 0.126 230
N2H+ (3−2) 279.51186c 9 0.042 77
N2D+ (2−1) 154.21718d 16 0.076 139

Notes. 

(a)

Resolution (Δv) and bandwidth of the spectrometer used (VESPA).

(b)

frequency of the main hyperfine component (F1F = 23 → 12, Pagani et al. 2007)

(c)

frequency of the F1F = 45 → 34 hyperfine component, having a relative intensity of 17.46%. (Crapsi et al. 2005)

(d)

frequency of the main hyperfine component (F1F = 23 → 12, Pagani et al. 2007)

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