No UV-bright Eruptions from SN 2023ixf in GALEX Imaging 15-20 Years Before Explosion

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 pe...

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Veröffentlicht in:arXiv.org 2023-07
Hauptverfasser: Flinner, Nicholas, Tucker, Michael A, Beacom, John F, Shappee, Benjamin J
Format: Artikel
Sprache:eng
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Zusammenfassung: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.
ISSN:2331-8422