标题： 研究磁星通过地壳相互作用产生的短时X射线爆发行为 显示英文标题

标题： Investigating the Recursive Short X-ray Burst Behavior of Magnetars Through Crustal Interactions

摘要： 来自强磁化中子星（即磁星）的能量爆发通常以簇的形式被探测到。 一旦活跃期开始，从几天到几个月的持续时间内，可能会发生从几次到数千次的硬X射线爆发。 在活跃期内，这些重复爆发的时间聚类表明存在一种触发多个快速相继爆发的潜在机制。 这些爆发簇可能对理解驱动磁星活动的过程至关重要。 在这项研究中，我们通过地壳相互作用来研究磁星的重复短时X射线爆发行为，采用了Lander（2023年）提出的磁星地壳细胞自动机模型。 我们的模拟基于物理上有根据的标准，成功再现了爆发簇。 此外，模拟中的活跃期的持续时间和能量与观测数据吻合良好。 我们讨论了在许多磁星中观察到的爆发簇背后的潜在物理机制，以及单个磁星的重新激活现象。 显示英文摘要

摘要： Energetic bursts from strongly magnetized neutron stars, known as magnetars, are typically detected in clusters. Once an active episode begins, anywhere from a few to thousands of hard X-ray bursts can occur over durations ranging from days to months. The temporal clustering of these recurrent bursts during an active episode suggests an underlying mechanism that triggers multiple bursts in rapid succession. These burst clusters are likely crucial for understanding the processes driving magnetar activity. In this study, we investigate the repetitive short X-ray burst behavior of magnetars through crustal interactions, employing the cellular automaton model for the magnetar crust proposed by Lander (2023). Our simulations, based on physically motivated criteria, successfully reproduce burst clustering. Additionally, the durations and energetics of active episodes in our simulations agree well with observational data. We discuss the potential physical mechanisms underlying burst clusters observed in numerous magnetars, as well as the reactivations of an individual magnetar.