GRB 110328 A/Swift J164449 .3+573451：一颗深俯冲恒星的潮汐湮没？
GRB 110328A/Swift J164449.3+573451: The Tidal Obliteration of a Deeply Plunging Star?
摘要：
我们研究潮汐破坏事件的情况下，解释SW 1644+57，一个强大的和持久的X射线源，突然成为活跃的GRB 110328 A。在z=0.35星系中心的精确定位证明了中心引擎的活动是根本原因。我们看看布鲁姆等人的建议的潮汐中断事件（TDE）的可能性。我们认为，Sw 1644+57不能用传统的TDE模型来解释，在传统的TDE模型中，近星点距离接近潮汐破裂半径-三条独立的论证线表明，轨道必须深深陷入，否则我们观察到的强大喷流不能产生。这些论点源于（i）将早期X射线光变曲线与预期的理论回退率进行比较，（ii）观察向盘主导衰变过渡的时间，以及（iii）考虑TDE率。由于极端过剩的潮汐力以上，这将需要最低限度地破坏恒星在一个深深的暴跌轨道在近星点，我们建议这种情况下可能会被称为更简洁的TOE（潮汐闭塞事件），而不是一个TDE。
英文摘要：
We examine the tidal disruption event scenario to explain Sw 1644+57, a powerful and persistent X-ray source which suddenly became active as GRB 110328A. The precise localization at the center of a z=0.35 galaxy argues for activity of the central engine as the underlying cause. We look at the suggestion by Bloom et al of the possibility of a tidal disruption event (TDE). We argue that Sw 1644+57 cannot be explained by the traditional TDE model in which the periastron distance is close to the tidal disruption radius - three independent lines of argument indicate the orbit must be deeply plunging or else the powerful jet we are observing could not be produced. These arguments stem from (i) comparing the early X-ray light curve to the expected theoretical fallback rate, (ii) looking at the time of transition to disk-dominated decay, and (iii) considering the TDE rate. Due to the extreme excess in the tidal force above that which would be required minimally to disrupt the star in a deeply plunging orbit at periastron, we suggest this scenario might be referred to more descriptively as a TOE (tidal obliteration event) rather than a TDE.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
