AGN变异性调查：从BATSS到EXIST的DASCH
AGN Variability Surveys: DASCH from BATSS to EXIST
摘要：
活动星系核（AGN）在很宽的时间尺度上是可变的，尽管相对较少的系统的变化调查已经进行。以前的宽波段（包括光谱和时间）可变性调查活动星系核的时间和光谱带宽有限，尽管他们的承诺，探测中央引擎和黑洞质量。我们概述了最佳性能的可变性研究，并提供了一个简短的总结三个新的可变性调查，两个（BATSS和DASCH）即将开始和第三（EXIST）可能在未来十年内，这将打开新的窗口的物理和活动星系核的基本属性。
英文摘要：
Active galactic nuclei (AGN) are variable on a wide range of timescales, though relatively few systematic variability surveys have been conducted. Previous broad-band (both spectral and temporal) variability surveys of AGN are limited in their temporal and spectral bandwidth, despite their promise for probing the central engine and black hole mass. We outline optimal properties for variability studies and provide a brief summary of three new variability surveys, two (BATSS and DASCH) about to begin and the third (EXIST) possible within the next decade, which will open new windows on the physics and fundamental properties of AGN.
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