The Red Supergiant Progenitor of the Type II Supernova 2024abfl

Abstract

Linkage between core-collapse supernovae (SNe) and their progenitors is not fully understood and ongoing effort of searching and identifying the progenitors is needed. $\mathrm{SN}2024abfl$ is a recent Type II supernova exploded in the nearby star-bursting galaxy $\mathrm{NGC}2146$, which is also the host galaxy of $\mathrm{SN}2018zd$. From archival Hubble Space Telescope (HST) data, we have found a red source (${\mathrm{m}}_{F814W}\sim 25$) near the location (angular distance $\le 0.2"$) of $\mathrm{SN}2024abfl$ before its explosion. With F814W and F606W photometry, we found that the properties of this source matched a typical red supergiant (RSG) moderately reddened by interstellar dust at the distance of the host galaxy. We conclude that the $\mathrm{SN}2024abfl$ had an RSG progenitor with initial mass of $10{\mathrm{M}}_{\odot }$--$16{\mathrm{M}}_{\odot }$.

11 pages, 6 figures, in review (submitted on Dec 9th, 2024)

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Cited by in corpus (2)

• Impact of stellar rotation on type II supernova progenitor masses from pre-explosion imaging
• Subluminous Type IIP SN 2024abfl as a Result of a Significantly Low-energy Fe-core Collapse