Optical photometrical observations and variability for quasar 4C 29.45
文献类型：期刊论文
| 作者 | Fan, Jun Hui; Tao, Jun ; Qian, Bo Chen; Gupta, Alok C.; Liu, Yi; Yuan, Yu-Hai; Yang, Jiang-He; Wang, Hong Guang; Huang, Y.
|
| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
 |
| 出版日期 | 2006 |
| 卷号 | 58期号:5页码:797-808 |
| 关键词 | galaxies : active galaxies : photometry quasars : individual (4C 29.45=1156+295) |
| 英文摘要 | We reported the result of the long-term optical variability of the blazar 4C 29.45s (QSO 1156 + 295, Ton 599), carried out by optical photometric observations in the Johnson V, Cousins RI passbands during 1997 April to 2002 March. We used the 1.56-m telescope of the Shanghai Astronomical Observatory at Sheshan, China, and compiled the post-1974 optical photometric data of the blazar by combining our new observations with the published optical data, and found maximum variations in different passbands: Delta U = 4.41 mag, Delta B = 5.55 mag, Delta V = 4.53mag, Delta R = 5.80mag, and Delta I = 5.34mag. The average color indices are: U - B = -0.54 +/- 0.18 mag, B - V = 0.56 +/- 0.21 mag, B - R = 0.93 +/- 0.18mag, B - I = 1.51 +/- 0.24mag, V - R = 0.44 +/- 0.15mag, and V - I = 1.03 +/- 0.23mag. The post-1974 data give us an excellent opportunity to search for the existence of a possible periodicity in the light curve. In searching for periodicity in the R passband light curve, we performed a Jurkevich test and power spectral (Fourier) analysis methods, as well as CLEANest algorithms to remove false signals. We found possible periods of 3.55 and 1.58 years. A possible mechanism for the periodic variability was analyzed. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | BL-LACERTAE OBJECTS ; 0.35-3.5 MICRON PHOTOMETRY ; TIME-SERIES ANALYSIS ; RAY LOUD BLAZARS ; LIGHT-CURVE ; INFRARED VARIABILITY ; RAPID VARIABILITY ; ACTIVE QUASARS ; NOVEMBER 1995 ; 3C 279 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000241876700003 |
| 源URL | [http://119.78.226.72/handle/331011/19441]  |
| 专题 | 上海天文台_天文地球动力学研究中心 |
| 作者单位 | 1.Guangzhou Univ, Ctr Astrophys, Guangzhou 510006, Peoples R China 2.Hunan Normal Univ, Inst Phys, Changsha, Peoples R China 3.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 4.Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India 5.Hunan Univ Arts & Sci, Dept Phys & Elect Sci, Changde 415000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, Jun Hui,Tao, Jun,Qian, Bo Chen,et al. Optical photometrical observations and variability for quasar 4C 29.45[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2006,58(5):797-808. |
| APA | Fan, Jun Hui.,Tao, Jun.,Qian, Bo Chen.,Gupta, Alok C..,Liu, Yi.,...&Huang, Y..(2006).Optical photometrical observations and variability for quasar 4C 29.45.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,58(5),797-808. |
| MLA | Fan, Jun Hui,et al."Optical photometrical observations and variability for quasar 4C 29.45".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 58.5(2006):797-808. |
入库方式： OAI收割
来源：上海天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。