Dimethyl ether in its ground state, v = 0, and lowest two torsionally excited states, v11 = 1 and v15 = 1, in the high-mass star-forming region G327.3-0.6

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Table 1

Overview of the observed frequencies, half-power beam widths (HPBW) and the telescope beam efficiencies (B_eff).

λ	ν	Freq. range	HPBW	B _eff
mm	GHz	GHz	′′

1.3	230	213–267.5	27.1	0.81
1.0	290	270–315	21.5	0.73
0.9	345	335–362	18.0	0.65
0.43	690	623–714.8	8.7	0.43^a
0.37	810	784–831 and 843.6–852.8	7.6	0.35^b

Notes.

^(a)

Measured at 661 GHz;

^(b)

measured at 809 GHz.

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