The photometric monitoring of γ-ray-loud narrow-line Seyfert 1 galaxy 1H 0323+342 from 2006 to 2010

被引：5
作者：
Wang, Fang [1 ,2 ,3 ,4 ]
Xiong, Ding-Rong [1 ,3 ,4 ]
Bai, Jin-Ming [1 ,3 ,4 ]
Li, Shao-Kun [1 ,3 ,4 ]
Wang, Jian-Guo [1 ,3 ,4 ]
机构：
[1] Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650216, Yunnan, Peoples R China
[4] Chinese Acad Sci, Ctr Astron Mega Sci, Beijing 100012, Peoples R China
来源：
RESEARCH IN ASTRONOMY AND ASTROPHYSICS | 2017年 / 17卷 / 07期
基金：
中国国家自然科学基金;
关键词：
galaxies: active; galaxies: individual (1H 0323+342); galaxies: jets; OPTICAL INTRADAY VARIABILITY; BL LACERTAE OBJECTS; QUASARS;
D O I：
10.1088/1674-4527/17/7/68
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
1H 0323+342 is a gamma-ray-loud narrow-line Seyfert 1 galaxy (NLS1). The variability mechanism of gamma-ray-loud NLS1s remains unclear. We have observed 1H 0323+342 photometrically from 2006 to 2010 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.
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页数：10
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