论文标题
快速褪色的恒星，作为三星级系统中的II型II型遮盖中间亮度光瞬变（ILOT）
A rapidly fading star as a type II obscuring intermediate luminosity optical transient (ILOT) in a triple star system
论文作者
论文摘要
我们提出了一个三星级的情况，其中两个前序列序列的合并<0.5MO弹出了尘土飞扬的赤道流出，该赤道赤道流出掩盖并暂时导致大型恒星消失，> 8mo。低质量内部二元动力的合并会导致微弱的爆发，即微弱的中间光度光学瞬态（ILOT），但其主要效果可以持续数十年来，几乎是（几乎）消失了三重系统的发光巨星。大约一年内三重系统的典型轨道时期。合并过程是作为两个低质量前序列序列的较大恒星开始进行的，因此在三个系统中开始将质量转移到最小的巨星，并且由于它的扩展。在三星级系统中，这种“ II型掩盖了ILOT”方案可能解释了大规模的后梅因序列星M101-OC1的褪色，重新夸张。它可能会在20 - 100年内恢复。我们的研究加强了这样一种说法，即有其他情况可以解释大量恒星的（几乎）消失，从而消除了失败的超新星的需求。在这些情况下，消失是暂时的，几十年了，因此，在以后的时间，巨大的恒星即使形成黑洞，大恒星也随着核心崩溃的超新星而爆炸。
We propose a triple-star scenario where the merger of two pre-main sequence low mass stars, <0.5Mo, ejects a dusty equatorial outflow that obscures and temporarily causes the disappearance of a massive star, >8Mo. The merger of the low-mass inner binary powers a faint outburst, i.e., a faint intermediate luminosity optical transient (ILOT), but its main effect that can last for decades is to (almost) disappear the luminous massive star of the triple system. The typical orbital period of the triple system in about a year. The merger process proceeds as the more massive star of the two low-mass pre-main sequence star starts to transfer mass to the least massive star in the triple system and as a result of that expands. This 'type II obscuring ILOT' scenario in a triple star system might account for the fading, re-brightening, and then re-fading of the massive post-main sequence star M101-OC1. It might recover in about 20-100 year. Our study strengthens the claim that there are alternative scenarios to account for the (almost) disappearing of massive stars, removing the need for failed supernovae. In these scenarios the disappearing is temporary, months to decades, and therefore at later time the massive star explodes as a core collapse supernova even if it forms a black hole.
