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Table 3.

Selected emission lines in SN 2019oys.

Line ID Wavelength Flux FWHM Comment
(Å) (10−16 erg s−1 cm−2) (Å)
[Ne V] 3346 3.2 7.9 Blended with [Ne III] λ3342
[Ne V] 3426 5.4 4.7
[Fe VII] 3586 1.5 5.2
[O II] 3727 1.0 8.6 Weak
[Fe VII] 3759 1.8 5.2
[Ne III] 3869 13.1 4.7 Strong and narrow
[He I] 3889 6.1 12.2 Broad
Ca II 3933 8.8 17.9 Ca II λ3933?, Broad
[Ne III] 3968 10.7 9.1
[Fe V] 4072 2.2 7.3 or more likely [S III]
Hδ 4103 9.7 20.0 Broad
Hγ 4340 19.1 21.2 Broad
[O III] 4363 4.9 6.2
[Ar XIV] 4412 1.3 5.8 Confused with Fe II?
He II 4686 1.3 5.2
Hβ 4861 75.6 25.0 Broad
[O III] 4959 5.1 4.7
[O III] 5007 16.8 5.0
[Fe VII] 5158 3.1 8.7
[Fe VI] 5176 2.6 13 Weak and blended, but present
[Ar X] 5536 1.3 10.7
[Fe VII] 5720 1.6 5.6
[N II] 5755 3.8 4.9
He I 5876 24.7 35.0 Broad (+Na I D)
[Fe VII] 6086 2.4 5.3
[O I] 6300 1.9 6.5
[S III] 6312 1.3 12.1 Present but weak
[O I] 6364 1.3 10.1 Somewhat blended
[Fe X] 6375 3.3 6.1
Hα 6563 737 34.7 Broad and Strong
He I 6678 3.3 24.1 Broad, no narrow component
[S II] 6717 0.33 5.9 Weak
[S II] 6731 0.51 8.4 Weak
He I 7065 7.5 24.0 Broad
[Ar III] 7136 0.76 6.3 Not in our model
[Fe II] 7155 1.0 5.0 Narrow, in model
[S XII] 7611 0.93 5.8
[Fe XI] 7891 2.1 5.3
O I 8446 14.7 37.6 Broad, blended with Fe II and Pa
Ca II 8498,8542,8662 5.8 33.7 Redmost of the broad lines
[S III] 9069 1.4 8.0
[Fe II] 8927 0.90 7.8 Example of Fe II fluorescence
[S III] 9531 2.3 4.8
Paschen8 9546 12.2 38.2
Paschen7 10036.7 14.2 53

Notes. Fluxes are from the day 172 (+204) Keck spectrum, absolute calibrated versus photometry and corrected for extinction in the Milky Way, see text.

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