Optical Variability of the TeV Blazar 1ES 0806+524 on Diverse Timescales
文献类型：期刊论文
| 作者 | Pandey,Ashwani9,10; Gupta,Alok C.9; Kurtanidze,Sofia O.11,12,13; Wiita,Paul J.1; Damljanovic,G.2; Bachev,R.3; Zhang,Jin4 ; Kurtanidze,O. M.5,6,11,12; Darriba,A.7,8; Chigladze,R. A.11,13
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| 刊名 | The Astrophysical Journal
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| 出版日期 | 2020-02-10 |
| 卷号 | 890期号:1 |
| ISSN号 | 0004-637X |
| 关键词 | Active galactic nuclei Blazars Observational astronomy CCD photometry Radio loud quasars Active galaxies Optical observation Relativistic jets Optical telescopes BL Lacertae objects |
| DOI | 10.3847/1538-4357/ab698e |
| 英文摘要 | Abstract We report the results of our optical (VRI) photometric observations of the TeV blazar 1ES 0806+524 on 153 nights during 2011–2019 using seven optical telescopes in Europe and Asia. We investigated the variability of the blazar on intraday as well as on long-term timescales. We examined 18 intraday light curves for flux and color variations using the most reliable power-enhanced F-test and the nested ANOVA test. Only on one night was a small, but significant, variation found, in both V-band and R-band light curves. The V?R color index was constant on every one of those nights. Flux density changes of around 80% were seen over the course of these eight years in multiple bands. We found a weighted mean optical spectral index of 0.639?±?0.002 during our monitoring period by fitting a power law ( ) in 23 optical (VRI) spectral energy distributions of 1ES 0806+524. We discuss different possible mechanisms responsible for blazar variability on diverse timescales. |
| 语种 | 英语 |
| 出版者 | The American Astronomical Society |
| WOS记录号 | IOP:0004-637X-890-1-AB698E |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/53971]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.Department of Physics, The College of New Jersey, 2000 Pennington Rd., Ewing, NJ 08628-0718, USA 2.Astronomical Observatory, Volgina 7, 11060 Belgrade, Serbia 3.Institute of Astronomy and National Astronomical Observatory, Bulgarian Academy of Sciences, 72 Tsarigradsko Shosse Boulevard, 1784 Sofia, Bulgaria 4.Key Laboratory of Space Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People’s Republic of China 5.Engelhardt Astronomical Observatory, Kazan Federal University, Tatarstan, Russia 6.Center for Astrophysics, Guangzhou University, Guangzhou 510006, People’s Republic of China 7.Group M1, Centro Astronómico de Avila, Madrid, Spain 8.American Association of Variable Star Observers (AAVSO), 49 Bay State Road, Cambridge, MA 02138, USA 9.Aryabhatta Research Institute of Observational Sciences (ARIES), Manora Peak, Nainital 263002, India; ashwanitapan@gmail.com 10.Department of Physics, DDU Gorakhpur University, Gorakhpur 273009, India |
| 推荐引用方式 GB/T 7714 | Pandey,Ashwani,Gupta,Alok C.,Kurtanidze,Sofia O.,et al. Optical Variability of the TeV Blazar 1ES 0806+524 on Diverse Timescales[J]. The Astrophysical Journal,2020,890(1). |
| APA | Pandey,Ashwani.,Gupta,Alok C..,Kurtanidze,Sofia O..,Wiita,Paul J..,Damljanovic,G..,...&Vince,O..(2020).Optical Variability of the TeV Blazar 1ES 0806+524 on Diverse Timescales.The Astrophysical Journal,890(1). |
| MLA | Pandey,Ashwani,et al."Optical Variability of the TeV Blazar 1ES 0806+524 on Diverse Timescales".The Astrophysical Journal 890.1(2020). |
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