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

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 $M_{\mathrm{Ni}}=0.046\pm 0.007$ 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 $M_{\mathrm{ej}}\lesssim 9$ M${}_{\odot }$, contrary to SN~2017eaw, another H-rich core-collapse event, which had $M_{\mathrm{ej}}\gtrsim 15$ M${}_{\odot }$.

submitted to ApJ