论文标题
风向瞬态
Wind-reprocessed Transients
论文作者
论文摘要
我们考虑到瞬态事件的亮度通过光学厚的风重新处理的情况。潜在的应用是黑洞，发动机驱动的超新星和当前和未来宽场调查发现的独特快速瞬变的潮汐破坏。我们在稳定和时间依赖的风中得出了注射和观察到的光度之间的关系，并讨论如何将温度设置为散射为主的辐射运输。我们将此框架应用于潮汐破坏事件的特定示例和大型恒星形成黑洞，并讨论了其他应用，例如从详细的流体动力学模拟中衍生出可观察到的物品。最后，我们通过探索质量损耗率和基础发动机AT2018COW的基础发动机（如果将其解释为一种进行风的瞬态）来结束，这表明其光学发射与观察到的软X射线的重新处理是一致的。
We consider the situation where the luminosity from a transient event is reprocessed by an optically thick wind. Potential applications are the tidal disruption of stars by black holes, engine-powered supernovae, and unique fast transients found by current and future wide-field surveys. We derive relations between the injected and observed luminosity for steady and time dependent winds, and discuss how the temperature is set for scattering-dominated radiative transport. We apply this framework to specific examples of tidal disruption events and the formation of a black hole by a massive star, as well as discuss other applications such as deriving observables from detailed hydrodynamic simulations. We conclude by exploring what is inferred about the mass loss rate and underlying engine powering AT2018cow if it is explained as a wind-reprocessed transient, demonstrating that its optical emission is consistent with reprocessing of the observed soft X-rays.
