The photometric monitoring of γ-ray-loud narrow-line Seyfert 1 galaxy 1H0323＋342 from 2006 to 2010

1H 0323＋342 is a γ-ray-loud narrow-line Seyfert 1 galaxy（NLS1）. The variability mechanism of γ-ray-loud NLS1 s remains unclear. We have observed 1H 0323＋342 photometrically from 2006 to2010 with a total of 41 nights of observations in order to constrain the variability mechanism. Intraday variabilit...

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Bibliographic Details
Published in:天文和天体物理学研究：英文版 2017, Vol.17 (7), p.47-56
Main Author: Fang Wang Ding-Rong Xiong Jin-Ming Bai Shao-Kun Li Jian-Guo Wang
Format: Article
Language:English
Subjects:
γ射线
光度
变异机制
吸积盘模型
时间跨度
星系
监测
颜色星等图
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Summary:1H 0323＋342 is a γ-ray-loud narrow-line Seyfert 1 galaxy（NLS1）. The variability mechanism of γ-ray-loud NLS1 s remains unclear. We have observed 1H 0323＋342 photometrically from 2006 to2010 with a total of 41 nights of observations in order to constrain the variability mechanism. Intraday variabilities（IDVs） are detected on four nights. When considering the nights with time spans 〉 2 hours,the duty cycle is 28.3%. The average variability amplitude is 10.8% for IDVs and possibly variable nights. In the color-magnitude diagram, there are bluer-when-brighter chromatic trends for intraday and long-term timescales, which could be explained by the shock-in-jet model, and also could possibly be due to two distinct components or an accretion disk model.
ISSN:1674-4527
2397-6209