论文标题
TEV BLAZAR 1ES 0806+524的光学变异性在不同的时间表上
Optical Variability of the TeV Blazar 1ES 0806+524 on Diverse Timescales
论文作者
论文摘要
我们报告了TEV Blazar 1ES 1ES 0806 $+$ 524在2011 - 2019年期间使用欧洲和亚洲的七个光学望远镜在2011 - 2019年期间153夜的光学（VRI）光度观测结果。我们调查了Blazar在日内以及长期时间表上的变异性。我们使用最可靠的功率增强的F检验和嵌套的ANOVA测试检查了18条盘中光曲线，以了解通量和颜色变化。在$ v $ band和$ r $ band light曲线中，只有一个晚上才发现了一个很小但很重要的变化。 $ v-r $颜色指数在每一个晚上都是恒定的。在这八年的多个频段中，在这八年的过程中，通量密度的变化约为80％。在我们的监控期内，我们发现了一个加权平均光谱指数为0.639 $ \ pm $ 0.002，通过在23个光学（$f_ν\ propto（$f_ν\ propto）中安装23个光学（$ vri $）的光谱仪（$f_ν\ propto），1ES 0806 $+$ 524。我们讨论了导致不同时间尺度上闪电可变性的不同可能机制。
We report the results of our optical (VRI) photometric observations of the TeV blazar 1ES 0806$+$524 on 153 nights during 2011-2019 using seven optical telescopes in Europe and Asia. We investigated the variability of the blazar on intraday as well as on long-term timescales. We examined eighteen intraday light curves for flux and color variations using the most reliable power-enhanced F-test and the nested ANOVA test. Only on one night was a small, but significant, variation found, in both $V$ band and $R$ band light curves. The $V-R$ color index was constant on every one of those nights. Flux density changes of around 80 % were seen over the course of these eight years in multiple bands. We found a weighted mean optical spectral index of 0.639$\pm$0.002 during our monitoring period by fitting a power law ($F_ν \propto ν^{-α}$) in 23 optical ($VRI$) spectral energy distributions of 1ES 0806$+$524. We discuss different possible mechanisms responsible for blazar variability on diverse timescales.
