Variability of Fe II in Two NLS1s, PG 1700+815 and NGC 4051

Journal of astrophysics and astronomy

Weihao Bian1 2¹  Zhen Yang¹ 

[1] Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing 210046, China.$$

关键词: Fe II;    emission lines;    light curves;    time lag;    PG 1700+518;    NGC4051.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

We analyze the spectral variability for two narrow line Seyfert 1 galaxies, PG 1700+518 and NGC 4051 using the spectral decomposition method. We focus on their optical Fe II variability to investigate the origin of Fe II in AGNs. For PG 1700+518, we find that the Fe II size is about 200 light-days, which is consistent with the H𝛽 size derived from the empirical R–L relation. For NGC 4051, the [O III] 5007 Å flux is strongly correlated with continuum flux, suggesting that we should recalibrate the spectral flux on a scale defined by [O III] flux. The corrected light curves of Fe II, H𝛽, He II, 𝑓𝜆 (5100 Å) are given here. A detailed analysis will be given in the near future.

【 授权许可】

Unknown