论文标题
大规模爆发的超新星的前体：附近核心爆发超新星预警的前景
Precursors of Supernovae from Mass Eruption: Prospects for Early Warning of Nearby Core-collapse Supernovae
论文作者
论文摘要
最近对II型超新星大部分的观察结果表明，非常接近祖细胞恒星的密集室内培养基（CSM）的痕迹。如果该CSM是由核心爆发前几个月的喷发质量损失而产生的，则喷发本身可以作为前体可见，有助于对近未来的超新星的预警。使用基于开源代码芯片的辐射流体动力学模拟，从理论上讲，我们对红色超级恒星的质量喷发进行了建模。我们发现，对于适度的质量喷发，发光度通常为$ 10^{39} $ erg s $^{ - 1} $的订单，直到恒星爆炸，并且主要在红外线（从-9到-11 mag axpeep affe），可以持续数百天持续数百天。我们讨论了从银河系和II型超新星找到这些特征的观察策略。
Recent observations of a large fraction of Type II supernovae show traces of dense circumstellar medium (CSM) very close to the progenitor star. If this CSM is created by eruptive mass loss several months before core-collapse, the eruption itself may be visible as a precursor, helpful as an early warning of a near-future supernova. Using radiation hydrodynamical simulations based on the open-source code CHIPS, we theoretically model the emission from mass eruption of a red supergiant star. We find that for a modest mass eruption the luminosity is typically on the order of $10^{39}$ erg s$^{-1}$, can last as long as hundreds of days until the star explodes, and is mainly bright in the infrared (from -9 to -11 mag around peak). We discuss observational strategies to find these signatures from Galactic and local Type II supernovae.
