AI 中文总结
该研究利用MESA模拟共包层后双星产生超剥离前身星及对应CSM，解析预测超新星抛射物与CSM相互作用的光变曲线，发现双星演化可产生多样CSM，为剥离包层超新星光变曲线多样性提供了可能的物理机制。
AI 中文摘要
越来越多的核心坍缩超新星（CCSNe）呈现出多样的光变曲线形态，这表明其与致密的、预先存在的星周物质（CSM）存在强相互作用。理解这类CSM的物理起源对于探索超新星（SN）前身星的晚期演化至关重要。双星相互作用期间的非保守质量转移是在核心坍缩前产生致密CSM的一个有前景的通道。我们使用恒星演化代码MESA模拟了共包层后双星系统，这些系统会产生超剥离前身星，并通过双星演化过程中的质量损失自洽地构建CSM。我们还通过追踪超新星抛射物与CSM相互作用的激波动力学，解析地预测了对应的热光度和射电光变曲线。我们发现，超剥离前身星的表面半径变化会触发多轮质量转移，产生多样的CSM密度分布，包括分离壳层和多峰结构。与这类CSM的相互作用会产生非单调、多峰的光学和射电光变曲线，在定性上与一些剥离包层超新星中观测到的特征相似。对剥离包层超新星候选体的长期多波段监测，尤其是在晚期，对于探测结构化CSM并约束剥离前身星的质量损失历史至关重要。我们的结果表明，拥有超剥离前身星的双星系统中的超新星-星周物质相互作用，为产生多样的光变曲线形态提供了一个可能的通道，凸显了大质量双星恒星在超新星爆发前的演化与其爆炸瞬变现象多样性之间的潜在联系。
英文摘要
A growing number of core-collapse supernovae (CCSNe) exhibit diverse light-curve morphologies that indicate strong interaction with dense, pre-existing circumstellar material (CSM). Understanding the physical origin of such CSM is essential for exploring the late-stage evolution of SN progenitors. Non-conservative mass transfer during binary interactions provides a promising channel for producing dense CSM before core collapse. Using the stellar evolution code MESA, we simulate post-common-envelope binaries that give rise to ultra-stripped progenitors and self-consistently construct the CSM from mass loss during binary evolution. We further analytically predict the resulting bolometric and radio light curves by following the shock dynamics of SN ejecta interacting with the CSM. We find that surface-radius variations in the ultra-stripped progenitors trigger multiple episodes of mass transfer and produce diverse CSM density profiles, including detached shells and multi-peaked structures. Interaction with such CSM gives rise to non-monotonic, multi-peaked optical and radio light curves that qualitatively resemble features observed in some stripped-envelope SNe. Long-term multi-wavelength monitoring of stripped-envelope SN candidates, particularly at late times, will be crucial for probing structured CSM and constraining the mass-loss history of stripped progenitors. Our results suggest that SN-CSM interaction in binaries hosting ultra-stripped progenitors provides a possible channel for producing diverse light-curve morphologies, highlighting a potential connection between the pre-SN evolution of massive binary stars and the diversity of their explosive transients.
Comments15 pages, 9 figures, 1 table. Accepted for publication in Astronomy & Astrophysics (A&A)
