论文标题
在考虑了潜在的短期光学瞬态振荡后，MRK142中宽线区域半径的新方法
New approach to broad line region radius in Mrk142 after considering potential short-term optical transient quasi-periodic oscillations
论文作者
论文摘要
MRK142被称为R-L空间中唯一的离群值（BLR（宽线区域）半径和连续性光度之间的相关性）在低红移的局部回响映射的宽线AGN（BLAGNS）中，其BLR小径小于R-L预期值。在这里，考虑到可能的光学瞬态准周期振荡（QPO），可以考虑一种评估BLRS半径的新方法。在几种正常AGN中，已经报道了来自黑洞附近的高能排放中的可靠瞬态QPO，但是正常blagns中很少有短期低能光学瞬态QPOS（不是在Blazars中报告的QPO，也不是在具有二进制BH Systems的Agns中报道的QPO）。通过正弦函数很好地描述了光度光学光曲线，我们报告了可能的短期光学瞬态QPO，其周期性在14天左右，在Blagn MRK142中进行了43天，这表明与高能带中的光学QPO相似但缩放的光学QPO。考虑到与后处理程序有关的14天QPO，可以通过混响映射技术在MRK142中估算BLRS半径的新方法。 MRK142井的新BLR半径遵循R-L关系，这表明R-L关系在没有超高增生率的局部正常爆炸中至关重要。
Mrk142 has been known as the only outlier in R-L space (correlation between BLRs (broad line regions) radii and continuum luminosity) among the low redshift local reverberation mapped broad line AGNs (BLAGNs) with moderate accretion rates, due to its BLRs radius smaller than R-L expected value. Here, considering probable optical transient quasi-periodic oscillations (QPOs), a new approach to assessing the BLRs radius can be considered. Reliable transient QPOs in high-energy emissions from black hole vicinity have been reported in several normal AGNs, however there are so-far few short-term low-energy optical transient QPOs in normal BLAGNs (not the QPOs reported in blazars nor in AGNs harbouring binary BH systems). Through the photometric optical light curves well directly described by sinusoidal functions, we report probable short-term optical transient QPOs with periodicities around 14days and 43days in BLAGN Mrk142, indicating similar but scaled optical QPOs as those in high-energy bands. Considering the 14days QPOs related to reprocessing procedure, new approach to the BLRs radius can be estimated in Mrk142 through the reverberation mapping technique. The new BLRs radius of Mrk142 well follows the R-L relation, demonstrating the R-L relation is fundamental in local normal BLAGNs without ultra-high accretion rates.
