The progenitor of SN 2023ixf from hydrodynamical modeling

M. C. Bersten, M. Orellana, G. Folatelli, L. Martinez, M. P. Piccirilli, T. Regna, L. M. Roman Aguilar,K. Ertini

ASTRONOMY & ASTROPHYSICS(2024)

引用 0|浏览0
暂无评分
摘要
Context. The supernova (SN) 2023ixf is among the nearest Type II SNe discovered in recent decades. As such, there is a wealth of observational data of both the event itself and of the associated object identified in pre-explosion images. This has enabled variety of studies aimed at determining the SN properties and the nature of the putative progenitor star. Modeling the light curve is a powerful method to derive the physical properties independently of direct progenitor analyses.Aims. We investigate the physical nature of SN 2023ixf based on a hydrodynamical modeling of its bolometric light curve and expansion velocities during the complete photospheric phase.Methods. A grid of one dimensional (1D) explosions was calculated for evolved stars of different masses. We derived the properties of SN 2023ixf and its progenitor by comparing our models with the observations.Results. The observations at t greater than or similar to 20 days are aptly reproduced by the explosion of a star with zero-age main sequence mass of M-ZAMS = 12 M-circle dot, an explosion energy of 1.2 x 10(51) erg, and a nickel mass of 0.05 M-circle dot. This indicates that SN 2023ixf was a normal event. Our modeling suggests a limit of M-ZAMS < 15 M-circle dot, thereby favouring the low-mass range among the results from pre-explosion observations.
更多
查看译文
关键词
hydrodynamics,supernovae: general,supernovae: individual: SN 2023ixf
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要