First observation of the magnetic dipole CO2 absorption band at 3.3 μm in the atmosphere of Mars by the ExoMars Trace Gas Orbiter ACS instrument

A. Trokhimovskiy; V. Perevalov; O. Korablev; A. A. Fedorova; K. S. Olsen; J.-L. Bertaux; A. Patrakeev; A. Shakun; F. Montmessin; F. Lefèvre; A. Lukashevskaya

doi:10.1051/0004-6361/202038134

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Volume 639 (July 2020)

A&A, 639 (2020) A142

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Table 3

Measured positions and their estimated line intensities of the 01111-00001 ¹²C¹⁶O₂ magnetic dipole band.

Line	Theoretical	Retrieved	S_Q × 10²⁸	S_Q × 10²⁸
	wavenumber	wavenumber	cm molecule⁻¹	cm molecule⁻¹
	(cm⁻¹)	(cm⁻¹)	at 172 K	at 296 K
R16	3016.656	3016.66	6.9	5.4
R18	3018.066	3018.07	6.4	5.5
R20	3019.459	3019.46	5.3	5.1
R22	3020.835	3020.84	4.3	4.6

Notes. The line intensities are given in the HITRAN convention (the isotopic abundance is 0.9842).

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