SN 2023ixf in M101: physical parameters from bolometric light curve modeling

TL;DR

This paper reports detailed photometric observations and modeling of supernova SN 2023ixf in M101, deriving physical parameters such as nickel mass and ejecta mass through bolometric light curve analysis.

Contribution

It provides new observational data and compares hydrodynamical and semi-analytic models to determine the supernova's physical parameters, highlighting a lower ejecta mass than similar events.

Findings

Nickel mass estimated as 0.046 ± 0.007 M_sun.

Ejecta mass constrained to less than 9 M_sun.

Contrasts with SN 2017eaw's higher ejecta mass.

Abstract

We present new photometric observations of the core-collapse supernova SN 2023ixf occurred in M101, taken with the RC80 and BRC80 robotic telescopes in Hungary. The initial nickel mass from the late-phase bolometric light curve extending up to 400 days after explosion, is inferred as $M_{\rm Ni} = 0.046 \pm 0.007$ M$_\odot$. The comparison of the bolometric light curve with models from hydrodynamical simulations as well as semi-analytic radiative diffusion codes reveals a relatively low-mass ejecta of $M_{\rm ej} \lesssim 9$ M$_\odot$, contrary to SN~2017eaw, another H-rich core-collapse event, which had $M_{\rm ej} \gtrsim 15$ M$_\odot$.