The ALMA-PILS survey: First detections of deuterated formamide and deuterated isocyanic acid in the interstellar medium

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Table 1

Number of lines used in the analysis of the isotopologues of NH₂CHO and HNCO and column densities derived for T_ex = 300 K and a source size of 0.5″.

Species	# of lines	E_up (K)	N (cm^-2)

NH₂CDO	12	146–366	2.1 × 10¹⁴
cis-NHDCHO	11	146–307	2.1 × 10¹⁴
trans-NHDCHO	11	151–332	1.8 × 10¹⁴
NH₂¹³CHO	10	152–428	1.5 × 10¹⁴
¹⁵NH₂CHO	–	–	≤1.0 × 10¹⁴^a
NH₂CH¹⁸O	–	–	≤0.8 × 10¹⁴^a
DNCO	4	150–751	3.0 × 10¹⁴
HN¹³CO	8	127–532	4.0 × 10¹⁴
H¹⁵NCO	–	–	≤2.0 × 10¹⁴^a
HNC¹⁸O	–	–	≤1.5 × 10¹⁴^a

Notes.

^(a)

3σ upper limit.

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