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Table 2

Selection of CH+ pure rotational (v = 0−0) line data.

Line Aij (s−1) ν (GHz) Eu (K) λ (μm)
J = 1–0 6.40(−03) 835.0997 40.078 359.0
J = 2–1 6.13(−02) 1669.210 120.19 179.6
J = 3–2 2.21(−01) 2501.344 240.23 119.9
J = 4–3 5.41(−01) 3330.520 400.07 90.01
J = 5–4 1.08(+00) 4155.763 599.52 72.14
J = 6–5 1.87(+00) 4976.106 838.33 60.25
J = 7–6 2.99(+00) 5790.597 1116.2 51.77
J = 8–7 4.46(+00) 6598.296 1432.9 45.43
J = 9–8 6.32(+00) 7398.279 1788.0 40.52
J = 10–9 8.62(+00) 8189.644 2181.0 36.60

Notes. Columns give the transition label, Einstein coefficient, transition frequency, energy of the upper level, and transition wavelength.

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