论文标题
狭窄的seyfert 1星系的可变性从泛斯塔尔的角度来看
The Variability of the Narrow-line Seyfert 1 Galaxies from the PanSTARRS's View
论文作者
论文摘要
通过Pan-Starras1调查的数据集，我们系统地检查了迄今为止最大的NLS1星系样本的可变性特征与物理参数之间的关系。结果总结如下：（1）。我们发现在G，R，I，Z和Y频段中的可变性幅度和绝对幅度之间存在显着的抗相关性，这与先前工作的结果一致。 （2）研究了光条与许多物理参数（例如λl（5100Å），黑洞质量，爱丁顿比率，R4570和R5007）之间的变异性幅度之间的相关性。结果表明，可变性幅度与L（5100Å），MBH，Eddington比率和R4570显着抗相关，但与R5007呈正相关。该关系可以通过简单的标准积分磁盘模型来解释。 （3）我们进一步研究了光学变异性与无线电亮度/无线电畅通之间的关系。结果表现出G和R频段中的弱正相关，但在I，Z和Y频段中相关性无关。 I，Z和Y频段中主机星系的近似分数的大误差可能导致无关紧要的相关性。
By means of the data sets from the Pan-STARRAS1 survey, we have systematically examined the relationship between the variability characteristics and the physical parameters of the largest NLS1 galaxy sample up to now. The results are summarized as follows: (1). We find significant anti-correlations between variability amplitude and absolute magnitude in g, r, i, z and y bands, which are consistent with the results in previous works. (2) The correlations between the variability amplitude in optical band and many physical parameters (e.g., λL(5100 Å), black hole mass, Eddington ratio, R4570 and R5007) are investigated. The results show the variability amplitude is significantly anti-correlated with L(5100 Å), MBH, Eddington ratio and R4570, but positively correlated with R5007. The relation could be explained by the simple standard accretion disk model. (3) We further investigate the relationship between optical variability and radio luminosity/radio-loudness. The results present weak positive correlation in g and r bands, but insignificant correlation in i, z and y bands. The large error of the approximate fraction of the host galaxy in i, z and y bands may lead to insignificant correlations.
