论文标题
潮汐破坏事件的无线电特性
Radio Properties of Tidal Disruption Events
论文作者
论文摘要
通过超级质量黑洞（SMBHS）破坏恒星的潮汐破坏事件（TDES）探针材料的无线电观察结果，独特地追踪了喷气机和流出的形成和演化，揭示了扰乱的流体动力学的细节，并阐明了先前过量的SMBHS周围的环境。迄今为止，观察结果显示出令人惊讶的人群。已经观察到一小部分TDE（最多只有百分之几）会产生无线电轻度相对论的射流。其余的人口是无线电安静的，产生了较小的发光喷气机，非偏见的流出，或者根本没有无线电发射。在这里，我们回顾了迄今为止TDE的无线电观察结果，并讨论了其属性的可能解释，重点是检测到的来源，尤其是在两个最有研究的事件上：SW J1644+57和Asassn-14Li。我们还讨论了我们从无线电观察结果中了解了TDE的宿主星系的知识，并回顾了TDE中明亮和微弱无线电流出率的限制。即将进行的X射线，光学，近IR和无线电调查将大大扩展TDE的样本，而技术进步为在无线电带中发现了由主机星系灭绝的无线电带中发现TDE的令人兴奋的可能性。
Radio observations of tidal disruption events (TDEs) probe material ejected by the disruption of stars by supermassive black holes (SMBHs), uniquely tracing the formation and evolution of jets and outflows, revealing details of the disruption hydrodynamics, and illuminating the environments around previously-dormant SMBHs. To date, observations reveal a surprisingly diverse population. A small fraction of TDEs (at most a few percent) have been observed to produce radio-luminous mildly relativistic jets. The remainder of the population are radio quiet, producing less luminous jets, non-relativistic outflows or, possibly, no radio emission at all. Here, we review the radio observations that have been made of TDEs to date and discuss possible explanations for their properties, focusing on detected sources and, in particular, on the two best-studied events: Sw J1644+57 and ASASSN-14li. We also discuss what we have learned about the host galaxies of TDEs from radio observations and review constraints on the rates of bright and faint radio outflows in TDEs. Upcoming X-ray, optical, near-IR, and radio surveys will greatly expand the sample of TDEs, and technological advances open the exciting possibility of discovering a sample of TDEs in the radio band unbiased by host galaxy extinction.
