论文标题
潮汐破坏事件对银河系可居住性的影响
The Impact of Tidal Disruption Events on Galactic Habitability
论文作者
论文摘要
潮汐破坏事件（TDE）的特征是发射短的高能辐射。我们使用银河系作为代理分析了TDE对银河居住性的累积影响。我们表明，在TDES期间发出的X射线和极端紫外线（XUV）辐射会导致流体动力逃逸并激发生物学损害。通过考虑适当的变量，例如大气逃逸的效率和与银河系中心的距离的效率，我们证明了TDE对银河宜居性的影响与活性银河核的影响相当。特别是，我们表明，在$ \ sim 0.1 $ - $ 1 $ kpc范围内的行星可能会在地球时代失去类似地球的气氛，并且其中一些可能会遭受生物学损害，一旦每$ \ gtrsim 10^4 $ yrs造成生物损害。我们通过强调TDE的潜在影响，并认为应将其纳入内部银河居住能力的未来分析。
Tidal Disruption Events (TDEs) are characterized by the emission of a short burst of high-energy radiation. We analyze the cumulative impact of TDEs on galactic habitability using the Milky Way as a proxy. We show that X-rays and extreme ultraviolet (XUV) radiation emitted during TDEs can cause hydrodynamic escape and instigate biological damage. By taking the appropriate variables into consideration, such as the efficiency of atmospheric escape and distance from the Galactic center, we demonstrate that the impact of TDEs on galactic habitability is comparable to that of Active Galactic Nuclei. In particular, we show that planets within distances of $\sim 0.1$-$1$ kpc could lose Earth-like atmospheres over the age of the Earth, and that some of them might be subject to biological damage once every $\gtrsim 10^4$ yrs. We conclude by highlighting potential ramifications of TDEs and argue that they should be factored into future analyses of inner galactic habitability.
