Mono-deuterated dimethyl ether: laboratory spectrum up to 1 THz - Torsion-rotational spectrum within the vibrational ground-state for the symmetric and asymmetric conformers and first detection in IRAS 16293-2422

C. Richard; L. Margulès; E. Caux; C. Kahane; C. Ceccarelli; J.-C. Guillemin; R. A. Motiyenko; C. Vastel; P. Groner

doi:10.1051/0004-6361/201220826

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Volume 552 (April 2013)

A&A, 552 (2013) A117

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Fig. 5

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Rotational transition J_{K_a,K_c} = 6_3,3 ← 5_2,4 of asymmetric mono-deuterated DME in the vibrational ground state at 238 GHz. In the case of an R line, the splitting of the A and E states is nearly identical unlike in the Q line as represented in Fig. 4. The spectrum intensity scale is arbitrary.

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