SN 2023ixf is a type II supernova that exploded inside dense, confined circumstellar material lost by its red supergiant progenitor in the final years before explosion, as established by synthesizing over 80 published studies.
No UV-bright Eruptions from SN 2023ixf in GALEX Imaging 15-20 Years Before Explosion
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abstract
We analyze pre-explosion ultraviolet (UV) imaging of the nearby Type II supernova SN 2023ixf in search of precursor variability. No outbursts are seen in observations obtained 15-20 yr prior to explosion to a limit of $L_{NUV} \approx 1000~L_{sun}$ and $L_{NUV} \approx 2000~L_{sun}$. The time period of these non-detections roughly corresponds to changes in the circumstellar density inferred from early spectra and photometry.
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SN 2023ixf: The Closest Supernova of the Decade
SN 2023ixf is a type II supernova that exploded inside dense, confined circumstellar material lost by its red supergiant progenitor in the final years before explosion, as established by synthesizing over 80 published studies.