AI 中文总结
研究低质量氦星双星后期质量损失产生的超新星，基于双星演化模拟建模CSM并计算光变曲线，其特性反映在部分Ib/n型超新星中，或能解释FBOTs，且质量损失产生的CSM与激波相互作用可能产生后期射电辐射，可用于检验相关情景。
AI 中文摘要
贫氢超新星的一个子集表现出与附近致密星际物质（CSM）相互作用的特征。这些超新星可能源于相互作用的双星系统，其中超新星前身星在核心坍缩前接近填满洛希瓣时经历强烈质量损失。本文研究了一系列初始轨道周期和质量下，双星系统中低质量剥离星前身星产生的超新星情况。基于双星演化模拟中剥离星的质量损失历史对CSM进行建模，然后对前身星进行数值爆炸以计算超新星光变曲线。CSM的激波冷却辐射主导早期光变曲线，随后是剥离星扩展氦包层的激波冷却辐射形成氦复合平台。模型光变曲线的外观和特性反映在文献中的Ib/n型超新星子集中。一些模型在激波冷却辐射期间演化迅速且温度很高，可能自然地解释一部分快速蓝光学瞬变（FBOTs）。由于双星前身星模型的质量损失历史可产生密度高达~10^18 cm的致密CSM，这种CSM与超新星激波的相互作用可能在光学超新星后的数年产生明亮的后期射电辐射。搜索FBOTs后期上升的射电辐射可用于检验哪些事件可由本文探索的情景解释。
英文摘要
A subset of hydrogen-poor supernovae (SNe) exhibit signatures of interaction with nearby dense circumstellar material (CSM). These SNe may originate from interacting binary systems, in which the SN progenitor experiences intense mass loss when it overflows its Roche lobe close to core collapse. In this work, we explore the appearance of SNe from low-mass stripped star progenitors in binary systems, for a range of initial orbital periods and masses. We model the CSM based on the stripped stars' mass loss history in binary stellar evolution simulations, then numerically explode the progenitors to calculate the SN light curves. Shock cooling emission (SCE) from the CSM dominates the early light curves, followed by SCE from the extended helium envelopes of the stripped stars, which form helium recombination plateaus. The appearance and properties of our model light curves are reflected in a subset of Type Ib/n SNe from the literature. Some of our models tend to evolve rapidly and are quite hot during SCE, so they may naturally explain some fraction of fast blue optical transients (FBOTs). Since the mass loss history of our binary progenitor models can produce dense CSM out to ~10^18 cm, interaction of this CSM with the SN shock could generate bright late-time radio emission in the years after the optical SN. Searching for late time rising radio emission from FBOTs could be used to test which events are explained by the scenario we explore here.
Comments18 pages, 8 figures, accepted
