Figure 6.
Total H α luminosity (top) and central velocity (bottom) evolution of SN 2023ixf with a range of IIb, II-L, and II-P SNe (with the large S17 sample of II-P SNe shown in individual dots). SN 2023ixf showed a greater Hydrogen velocity than typical H-rich II-P SNe but lower than examples of IIb SNe with significantly stripped Hydrogen envelopes. Its velocity was similar to the IIL SN 2014G. However, its total H-α luminosity was more in line with Hydrogen rich examples. See Table A1 for references of quoted SNe.