论文标题
射流诱导的光学微评估的证据在无线电狭窄线中1个星系
Evidence of jet induced optical microvariability in radio-loud Narrow Line Seyfert 1 Galaxies
论文作者
论文摘要
To quantify the role of radio jets for Intra-Night Optical Variability (INOV) in Radio-Loud Narrow-Line Seyfert 1 (RLNLSy1) galaxies, we report the first systematic comparative INOV study of 23 RLNLSy1 galaxies, with 15 RLNLSy1s having confirmed detection of jets (jetted) and the remaining 8 RLNLSy1s having no detection of jets (non-jetted) based on他们很长的基线阵列观察。我们分别在37个和16个会话中分别监视了这两个样本，每个样本持续时间至少3小时。基于典型的INOV振幅（$ψ$）的f $^η$检测水平，$> $ 3 \％的检测阈值，我们发现INOV税收周期为12 \％的inov税收周期，用于喷射的rlnlsy1s样本，但是，没有任何来源显示出非召唤的样本中的inov inov。在喷射的rlnlsy1s中，我们发现被检测到的$γ$ -Ray的占空比（DC）（$γ$ -Ray）rlnlsy1s被发现为34％\％，而NULL INOV在非null INOV检测中检测到了非$ ray-ray-ray-ray-ray-ray-ray-ray-ray-ray rlnlsy1s。这表明，相对论的光束不仅仅存在射流，而是在低可发光的高吸收AGN（例如NLSY1）的情况下，对INOV起着重要作用，在这种情况下，AGN的非热光学发射（稳定）的光发射对核积累盘的稀释很可能对核积累盘的稀释。我们对喷气式$γ$ -RARY rlnlsy1s的研究表明，对于具有较高明显的喷射速度的来源，INOV检测更频繁。此外，我们的结果还表明，在NLSY1中，只有喷射$γ$ -RARY RNLSY1 GALAXIES DC DC像DC一样接近Blazar。
To quantify the role of radio jets for Intra-Night Optical Variability (INOV) in Radio-Loud Narrow-Line Seyfert 1 (RLNLSy1) galaxies, we report the first systematic comparative INOV study of 23 RLNLSy1 galaxies, with 15 RLNLSy1s having confirmed detection of jets (jetted) and the remaining 8 RLNLSy1s having no detection of jets (non-jetted) based on their Very Long Baseline Array observations. We have monitored these two samples, respectively, in 37 and 16 sessions of a minimum 3-hour duration each. Based upon F$^η$-test at 99\% confidence level with a typical INOV amplitude ($ψ$) detection threshold of $>$ 3\%, we find the INOV duty cycles of 12\% for the sample of jetted RLNLSy1s, however, none of the sources showed INOV in the sample of non-jetted RLNLSy1s. Among the jetted RLNLSy1s, we find that the Duty Cycle (DC) for jetted $γ$-ray detected ($γ$-ray) RLNLSy1s is found to be 34\% in contrast to null INOV detection in the case of non-$γ$-ray RLNLSy1s. It suggests that instead of the mere presence of a jet, relativistic beaming plays a significant role for INOV in the case of low-luminous high accreting AGNs such as NLSy1s in which dilution of the AGN's non-thermal optical emission by the (much steadier) optical emission contributed by the nuclear accretion disc is quite likely. Our study of jetted $γ$-ray RLNLSy1s shows more frequent INOV detection for sources with higher apparent jet speed. Further, our results also suggest that among the NLSy1s, only jetted $γ$-ray RNLSy1 galaxies DC approaches blazar like DC.
