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Three laboratory and and one astronomical lines were reported by
(1) P. B. Changala, H. Gupta, J. Cernicharo, J. R. Pardo, M. Agúndez,
C. Cabezas, B. Tercero, M. Guélin, and M. C. McCarthy,
2022, Astrophys. J. Lett. 940, Art. No. L42.
Except for (B + C)/2, parameters were kept fixed to
scaled or unscaled parameters from
(2) A. G. Watrous and R. C. Fortenberry,
2023, Mon. Not. R. Astron. Soc. 518, 5140.
Despite the very limited data, transition frequencies with
Ka = 0 may be quite reliable; all others
should be viewed with increasing caution.
The 25Mg hyperfine splitting is resolvable for
transitions with low quantum numbers.
The dipole moment of the main isotopic species was taken
from a quantum-chemical calculation in
(3) S. Itono, K. Takano, T. Hirano, and U. Nagashima,
2000, Astrophys. J. 538, L163;
the value in 3 agree with this value.
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