Deuterated methanol toward NGC 7538-IRS1 | Astronomy & Astrophysics (A&A)

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Table 1

Physical properties of methanol isotopologs: rotational temperature and column density.

Species	T_rot	N
	(K)	(10¹⁴ cm⁻²)
¹³CH₃OH	140 ± 9	54 ± 5
CH₂DOH	153 ± 75	12 ± 3
CH₃OD-E	103 ± 54	1.7 ± 0.6
CH₃OD-A	112 ± 18	2.1 ± 0.4

Notes. A source size of 3.8′′ was adopted.

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