Open Access

Table A.2

Model atoms used in CMFGEN calculations for the toy06 model.

Ion NSL Nfull Last level Nlines
Si II 32 62 3s2 7g 2G 1 032
Si III 33 61 3s 5g3G 615
Si IV 37 48 10f 2Fo 816
Si V 1 1
S II 56 324 3s 3p3(5So)4p 6P 16965
S III 48 98 3s 3p2(2D)3d 3P 1 723
S IV 27 67 3s 3p(3Po)4p 2D 1 091
S V 1 1
Ca II 44 77 3p6 30w 2W 3 365
Ca III 16 40 3s2 3p5 5s 1Po 210
Ca IV 18 69 3s 3p5(3Po)3d 4Do 646
Ca V 1 1
Fe I 44 136 3d6(5D)4s 4p x5Fo 3 934
Fe II 228 2698 3d5(4F)4s 4p b4Go 1 060 528
Fe III 83 698 3d5(2H)4d1K 73 419
Fe IV 100 1 000 3d4(3G)4f 4Po 144005
Fe V 47 191 3d3(4F)4d5F 7892
Fe VI 1 1
Co II 136 2 747 3d7(2D)6p 3Po 1 186076
Co III 124 3 917 3d6(3D)6d4P 1357 405
Co IV 37 314 3d5(2P)4p 3Po 17 952
Co V 32 387 3d4(3F)4d2H 27 046
Co VI 1 1
Ni II 59 1 000 3d8(3F)7f 4Io 103 224
Ni III 47 1 000 3d7(2D)4d 3Sb 132 677
Ni IV 28 254 3d6(1G1)4p 2Go 12 512
Ni V 46 183 3d5(2D3)4p 3Fo 6 033
Ni VI 1 1
Total 1328 15377 4159166

Notes: Due to a gf cut (level dependent, gf > 10−4) only 1 292 015 lines were included in the non-LTE calculations of the level populations. 2 082 610 lines were included when computing the observed spectrum. Prior to 4.25 days post explosion a higher cut was used (gf > 10−3) in order to ease convergence. From 28.52 d onward we omitted the highest ionisation stages Fe V, Co V, and Ni V because their populations are too low to affect the radiative transfer.

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