论文标题
Fairall的密集圆盘革命映射9：Swift＆LCO监视的第一年
Intensive disc-reverberation mapping of Fairall 9: 1st year of Swift & LCO monitoring
论文作者
论文摘要
我们介绍了Fairall 9密集的圆盘革命运动第一年的时间序列分析结果。我们使用Swift和Las Cumbres天文台全球望远镜网络，在每天至少每日节奏中连续监视Fairall 9从X射线到近红外。频段之间的互相关函数为滞后频谱提供了证据，与$τ\proptoλ^{4/3} $缩放相一致，可预期对于光学较厚，几何薄的黑体积聚盘。将通量分解为恒定和可变成分，可变分量的光谱能量分布比标准积聚盘预测略有陡峭。我们在滞后光谱和通量光谱的Balmer边缘上找到了证据，表明在宽线区域重新处理可能会产生其他无界连续性贡献。推断的驱动光曲线提出了两个不同的组件，X射线后处理引起的一个迅速变量（$ <4美元）的组件，以及更慢的（$> 100美元的$天）组件，与混响信号相反。
We present results of time-series analysis of the first year of the Fairall 9 intensive disc-reverberation campaign. We used Swift and the Las Cumbres Observatory global telescope network to continuously monitor Fairall 9 from X-rays to near-infrared at a daily to sub-daily cadence. The cross-correlation function between bands provides evidence for a lag spectrum consistent with the $τ\proptoλ^{4/3}$ scaling expected for an optically thick, geometrically thin blackbody accretion disc. Decomposing the flux into constant and variable components, the variable component's spectral energy distribution is slightly steeper than the standard accretion disc prediction. We find evidence at the Balmer edge in both the lag and flux spectra for an additional bound-free continuum contribution that may arise from reprocessing in the broad-line region. The inferred driving light curve suggests two distinct components, a rapidly variable ($<4$ days) component arising from X-ray reprocessing, and a more slowly varying ($>100$ days) component with an opposite lag to the reverberation signal.
