The MARTINI platform - I. Se I–X atomic calculation and expansion opacity for early stage kilonova spectral analysis

Open Access

Table 1.

Se I–IV electron configurations.

Se I		Se II		Se III		Se IV

Even	Odd	Even	Odd	Even	Odd	Even	Odd
4s² 4p⁴	4s² 4p³ 4d	4s² 4p² 4d	4s² 4p³	4s² 4p²	4s² 4p 4d	4s 4p²	4s² 4p
4s² 4p² 4d²	4s² 4p 4d³	4s 4p⁴	4s 4p³ 4d	4p⁴	4s² 4p 5s	4s 4p 4f	4p³
4s² 4p³ 4f	4s² 4p³ 5s	4s 4p³ 4f	4s² 4p² 4f	4s 4d³	4s² 5s 5p	4s² 4d	4s² 5p
4s² 4p³ 5p	4s² 4p² 5s 5p	4s² 4p² 5s	4s² 4p 5s²	4s² 4d²	4s 4p³	4s 4p 5p	4s² 4f
4s² 4p² 5s²	4s² 4p² 4d 4f	4s² 4p 5s 5p	4s² 4p² 5p	4s² 4p 5p	4s 4p² 4f	4s² 5s	4s 4p 5s
				4s² 4p 4f			4s 4p 4d
				4s 4p² 5s

Notes. MultiReference sets of Se I–IV electron configuration with fixed core [Ar]3d¹⁰. In each MR chosen, the same {5s, 5p, 4d, 4f} orbital symmetry with the corresponding quantum numbers has been kept.

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