No UV-bright Eruptions from SN 2023ixf in GALEX Imaging 15–20 yr Before Explosion
Nicholas Flinner, M. A. Tucker, J. F. Beacom, B. J. Shappee
Abstract
Abstract We analyze pre-explosion ultraviolet 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 ≈ 1000 L ⊙ and L FUV ≈ 2000 L ⊙ . The time period of these non-detections roughly corresponds to changes in the circumstellar density inferred from early spectra and photometry.
Topics & Concepts
SupernovaPhotometry (optics)AstrophysicsUltravioletPhysicsSpectral lineAstronomyOpticsStarsGamma-ray bursts and supernovaeAstrophysics and Cosmic PhenomenaAstrophysical Phenomena and Observations