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

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,...

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Bibliographic Details
Published in:Journal of astrophysics and astronomy 2011-06, Vol.32 (1-2), p.253-256
Main Authors: Bian, Weihao, Yang, Zhen
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics and Astroparticles
Continuums
Fluctuations
Flux
Galaxies
Iron
Observations and Techniques
Origins
Physics
Physics and Astronomy
Spectra
Spectral lines
Spectrum analysis
Stars & galaxies
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Summary: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 H β 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 , H β , He ii , f λ (5100 Å) are given here. A detailed analysis will be given in the near future.
ISSN:0250-6335
0973-7758
DOI:10.1007/s12036-011-9067-7