English

Modeling the Progenitor Stars of Observed IIP Supernovae

Solar and Stellar Astrophysics 2024-05-28 v2 High Energy Astrophysical Phenomena

Abstract

Type IIP supernovae (SNe IIP) are thought to originate from the explosion of massive stars > 10 Msun. Their luminosity is primarily powered by the explosion energy and the radioactive decay energy of 56Co, with the photosphere location regulated by hydrogen recombination. However, the physical connections between SNe IIP and their progenitor stars remain unclear. This paper presents a comprehensive study of SNe IIP and their progenitor stars by using the one-dimensional stellar evolution code, MESA. Our model grids consider the effects of stellar metallicity, mass, and rotation in the evolution of massive stars, as well as explosion energy and 56Ni production in modeling supernovae. To elucidate the observed SNe IIP and their origins, we compare their light curves (LCs) with our models. Furthermore, we investigate the impact of stellar parameters on LCs by considering stellar mass metallicity, rotation, explosion energy, and 56Ni production. We find that more massive stars exhibit longer plateaus due to increased photon diffusion time caused by massive ejecta. Higher metallicity leads to increased opacity and mass loss of progenitor stars. Rapid rotation affects internal stellar structures, enhancing convective mixing and mass loss, potentially affecting the plateau's brightness and duration. Higher explosion energy results in brighter but shorter plateaus due to faster-moving ejecta. 56Ni mass affects late-time luminosity and plateau duration, with larger masses leading to slower declines.

Keywords

Cite

@article{arxiv.2402.19260,
  title  = {Modeling the Progenitor Stars of Observed IIP Supernovae},
  author = {Kai-An You and Ke-Jung Chen and Yen-Chen Pan and Sung-Han Tsai and Po-Sheng Ou},
  journal= {arXiv preprint arXiv:2402.19260},
  year   = {2024}
}

Comments

22 pages, 7 figures. Accepted for publication in ApJ