论文标题
IAX型超新星的幸存伴侣星的长期演变
Long-term evolution of surviving companion stars of Type Iax supernovae
论文作者
论文摘要
IAX型超新星（SNE IAX）的祖细胞的性质和爆炸机制仍然是一个谜。最近提出了涉及近乎底拉斯卡群白矮人（WDS）不完整的纯额化爆炸（WDS）的单一分类（SD）系统，用于生产SNE IAX，其中预计非分类伴侣有望在SN爆炸中生存。在这项工作中，我们专注于主要序列（MS）供体SD祖细胞系统。通过将弹出式相互作用的三维流体动力学模拟映射到一维恒星进化代码MESA中，我们通过追踪SNE IAX幸存的MS伴侣的长期外观和观察性特征，通过追踪其后影响后影响。根据不同的MS伴随模型，发现令人震惊的幸存的伴侣恒星可以显着扩展并发展为10-1e4年度的时间尺度。与观察到的SN IAX（SN 2005HK）的后期光曲线相比，建议在爆炸本身逐渐消失后约1000天可见SNE IAX的MS同伴。
The nature of the progenitors and explosion mechanism of Type Iax supernovae (SNe Iax) remain a mystery. The single-degenerate (SD) systems that involve the incomplete pure deflagration explosions of near-Chandrasekhar-mass white dwarfs (WDs) have recently been proposed for producing SNe Iax, in which non-degenerate companions are expected to survive from SN explosions. In this work we concentrate on the main-sequence (MS) donor SD progenitor systems. By mapping the computed companion models from three-dimensional hydrodynamical simulations of ejecta-companion interaction into a one-dimensional stellar evolution code MESA, we investigate the long-term appearance and observational signatures of surviving MS companions of SNe Iax by tracing their post-impact evolution. Depending on different MS companion models, it is found that the shocked surviving companion stars can significantly expand and evolve to be more luminous (5-500 Lsun) for a time-scale of 10-1e4 yr. Comparing with the late-time light curve of an observed SN Iax (SN 2005hk), it is suggested that surviving MS companions of SNe Iax would expect to be visible about 1000 days after the explosion when SN itself has been faded.
