论文标题
部分可观测时空混沌系统的无模型预测
The ngEHT's Role in Measuring Supermassive Black Hole Spins
论文作者
论文摘要
虽然超级质量的黑洞质量已在宇宙时间进行分类，但只有几十个具有强大的自旋测量。通过扩展和改善现有的事件范围望远镜（EHT）阵列，下一代事件范围望远镜（NGEHT）将使多频率，偏光电影在活动范围内范围，这将在时空时间和积分流程上对新约束。通过结合这些信息，可以预期NGEHT可能能够测量数十万种超大质量的黑洞质量和旋转。在这份白皮书中，我们讨论了现有的自旋测量以及许多提出的技术，其中NGEHT可以潜在地测量目标超质量黑洞的旋转。由NGEHT测量的旋转将代表一个全新的来源样本，与预先存在的样本不同，它不会偏向具有较高积聚速率的物体。这样的样本将为超级质量黑洞的积聚，反馈和宇宙组装提供新的见解。
While supermassive black hole masses have been cataloged across cosmic time, only a few dozen of them have robust spin measurements. By extending and improving the existing Event Horizon Telescope (EHT) array, the next-generation Event Horizon Telescope (ngEHT) will enable multifrequency, polarimetric movies on event horizon scales, which will place new constraints on the space-time and accretion flow. By combining this information, it is anticipated that the ngEHT may be able to measure tens of supermassive black hole masses and spins. In this white paper, we discuss existing spin measurements and many proposed techniques with which the ngEHT could potentially measure spins of target supermassive black holes. Spins measured by the ngEHT would represent a completely new sample of sources that, unlike pre-existing samples, would not be biased towards objects with high accretion rates. Such a sample would provide new insights into the accretion, feedback, and cosmic assembly of supermassive black holes.
