Table B.1.

Atomic data for O II. Formulae for Υ_ul are taken from fit to Tayal (2007). We note – as already pointed out by Kisielius et al. (2009) – that a few rows in Table 3 of Tayal (2007) are mixed-up, that is the transitions are not labelled correctly. In Table 3 therein the entries for the transition 1 to 4 must be 1 to 5 and vice versa. The entries for the transition 2 to 4 must be 2 to 5 and vice versa. The entries for the transition 3 to 4 must be 3 to 5 and vice versa. The validity range for the stated Υ_ul is T_e = 4 000 − 100 000 K.

jul	Transition (u–l)	λair [Å]	Aul [s−1]	Υul(Te, O+), T4 = Te/104 K
j51	2P${}_{1/2}^{\mathrm{o}}$–4S${}_{3/2}^{\mathrm{o}}$	2470.2	2.12 × 10−2	0.1395 T40.02642 + 0.01077 ln T4
j52	2P${}_{1/2}^{\mathrm{o}}$–2D${}_{5/2}^{\mathrm{o}}$	7318.9	5.19 × 10−2	0.3541 T40.06713 + 0.02157 ln T4
j53	2P${}_{1/2}^{\mathrm{o}}$–2D${}_{3/2}^{\mathrm{o}}$	7329.7	8.672 × 10−2	0.3296 T40.0775 + 0.0291 ln T4
j54	2P${}_{1/2}^{\mathrm{o}}$–2P${}_{3/2}^{\mathrm{o}}$	5.03 mm	1.41 × 10−10	0.3228 T40.04077 + 0.02892 ln T4
j41	2P${}_{3/2}^{\mathrm{o}}$–4S${}_{3/2}^{\mathrm{o}}$	2470.3	5.22 × 10−2	0.2827 T40.02589 + 0.009331 ln T4
j42	2P${}_{3/2}^{\mathrm{o}}$–2D${}_{5/2}^{\mathrm{o}}$	7320.0	9.907 × 10−2	0.8437 T40.08544 + 0.02737 ln T4
j43	2P${}_{3/2}^{\mathrm{o}}$–2D${}_{3/2}^{\mathrm{o}}$	7330.7	5.34 × 10−2	0.4923 T40.06732 + 0.02241 ln T4
j31	2D${}_{3/2}^{\mathrm{o}}$–4S${}_{3/2}^{\mathrm{o}}$	3726.0	1.776 × 10−4	0.5488 T40.01254 + 0.005683 ln T4
j32	2D${}_{3/2}^{\mathrm{o}}$–2D${}_{5/2}^{\mathrm{o}}$	499.5 μm	1.30 × 10−7	1.432 T4−0.1505 + 0.03903 ln T4
j21	2D${}_{5/2}^{\mathrm{o}}$–4S${}_{3/2}^{\mathrm{o}}$	3728.8	3.058 × 10−5	0.802 T40.01821 + 0.007941 ln T4