Possible detection of the progenitor of the Type II supernova SN2023ixf

Joanne L. Pledger; Michael M. Shara

Possible detection of the progenitor of the Type II supernova SN2023ixf

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arxiv 2305.14447 v2 pith:CVTNAM3P submitted 2023-05-23 astro-ph.SR astro-ph.HE

Joanne L. Pledger , Michael M. Shara This is my paper · ORCID

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keywords progenitorsupernovaesn2023ixfstellarsupernovatheoryabsolutecharacterizing

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Stellar evolution theory predicts multiple pathways to the explosive deaths of stars as supernovae. Locating and characterizing the progenitors of well-studied supernovae is important to constrain the theory, and to justify and design future surveys to improve on progenitor detections. Here we report the serendipitous pre-explosion imaging, by the {\it Hubble Space Telescope}, of SN2023ixf, one of the nearest extragalactic supernovae ever discovered, in the galaxy M101. The extremely red color and absolute magnitude M(F814W)=-5.11(+0.65/-0.47)mag suggest that the progenitor was a red supergiant. Comparison with stellar evolutionary isochrones suggests it is within the relatively low initial mass range of ~8-10Msun and that there is likely a lot of dust present at the supernova site.

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SN 2023ixf: The Closest Supernova of the Decade
astro-ph.HE 2025-07 unverdicted novelty 1.0 of 10

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...

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