The Variability of the Narrow-line Seyfert 1 Galaxies from the Pan-STARRS's View  

作　　者：Hong-Tao Wang Yan-Ping Su Xue Ge Yong-Yun Chen Xiao-Ling Yu 

机构地区：[1]School of Science,Langfang Normal University,Langfang,065000,China [2]School of Life Science,Langfang Normal University,Langfang,065000,China [3]School of Physics and Electronic Engineering,Jiangsu Second Normal University,Nanjing,Jiangsu 211200,China [4]The College of Physics and Electronic Engineering,Qujing Normal University,Qujing,655011,China [5]School of Astronomy and Space Science,Nanjing University,Nanjing,210093,China

出　　处：《Research in Astronomy and Astrophysics》2022年第1期148-155,共8页天文和天体物理学研究（英文版）

基　　金：funded by the the Fundamental Research Funds for the Universities in Hebei Province (No:JYQ202003)。

摘　　要：By means of the data sets from the Pan-STARRS1 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 A),black hole mass, Eddington ratio, R;and R;) are investigated. The results show the variability amplitude is significantly anti-correlated with L(5100 A), MBH, Eddington ratio and R_(4570), but positively correlated with R;.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.

关 键 词：catalogs galaxies:photometry galaxies:Seyfert 

分 类 号：P15[天文地球—天文学]