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Table 1

Column densities and rotational temperatures at the one beam offset position around source B from the ALMA-PILS data.

Molecule Chemical formula (cm−2) Tex (K) Vpeak (km s−1)
Nitric oxide NO (1.5–2.5) × 1016 40–150 2.5 ± 0.2
Nitrous oxide N2O ≥4.0 × 1016,‡ 25–350 2.5 ± 0.2
Hydroxylamine NH2OH ≤3.7 × 1014 100 2.7
Methanimine CH2NH (6.0–10.0) × 1014 70–120 2.7 ± 0.2
Methylamine CH3NH2 ≤5.3 × 1014 100 2.7

Notes. All models assume LTE, a FWHM of 1 km s−1 and a sourcesize of 0.′′5. Upper limits are 3σ and determined for Tex = 100 K. Due to the large uncertainty on the highest excitation temperature only the lower limit column density is given.

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