Unveiling the progenitor of SN 2023ixf: Circumstellar dust and its implications for the red supergiant problem

Open Access

Fig. 7.

DOLoRES spectrum of SN 2023ixf at 772.28 days post-explosion (MJD 60854). The spectrum covers 6000–9500 Å at a resolution of R ≈ 700. Prominent Hα emission is visible at 6563 Å.

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