论文标题
TDES的X射线余星延迟了，起源于风腹相互作用
Years Delayed X-ray Afterglows of TDEs Originated from Wind-Torus Interactions
论文作者
论文摘要
潮汐破坏事件（TDE）发生在活性银河核（AGN）中是具有出色科学意义的特殊来源。 TDE可以产生超快速的风，几乎应该与先前存在的Agn Dusty Tori相撞。我们对风道相互作用进行分析计算和模拟，发现这种过程可以在TDE爆发后几年或几十年后产生相当大的X射线辐射辐射。这提供了多年来TDE延迟X射线的新来源。 X射线光度可以达到10^{41-42} erg/s，光曲线特性取决于风和托里的参数。我们将模型应用于两个TDE候选物，并对破坏的恒星的质量以及对Tori气体密度的严格约束提供了下限。我们的结果表明，可以使用X射线余波的时间延迟，光谱形状，光度和光曲线的观察结果来限制TDE风和Tori的物理参数，包括风速，风密度和圆环密度。
Tidal disruption events (TDEs) occurred in active galactic nuclei (AGNs) are a special class of sources with outstanding scientific significance. TDEs can generate ultrafast winds, which should almost inevitably collide with the preexisting AGN dusty tori. We perform analytical calculations and simulations on the wind-torus interactions and find such a process can generate considerable X-ray afterglow radiation several years or decades later after the TDE outburst. This provides a new origin for the years delayed X-rays in TDEs. The X-ray luminosity can reach 10^{41-42} erg/s, and the light curve characteristics depend on the parameters of winds and tori. We apply the model to two TDE candidates, and provide lower limits on the masses of the disrupted stars, as well as rigorous constraints on the gas densities of tori. Our results suggest that the observations of the time delay, spectral shape, luminosity and the light curve of the X-ray afterglow can be used to constrain the physical parameters of both TDE winds and tori, including the wind velocity, wind density and torus density.
