X-Ray Intraday Variability of the Blazar OJ 287 Observed with XMM-Newton
文献类型：期刊论文
| 作者 | Huang, Tao5,6; Gupta, Alok C.4,6; Cui, Lang3,5,6; Tripathi, Ashutosh6; Huang, Yongfeng1,2; Devanand, P. U.4; Liu, Xiang3,6 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2026-02-10 |
| 卷号 | 998期号:1页码:14 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ae38b9 |
| 通讯作者 | Gupta, Alok C.(acgupta30@gmail.com) |
| 英文摘要 | We present X-ray intraday variability, cross-correlated variability, and power spectrum density analysis of the binary black hole blazar candidate OJ 287. The X-ray pointed observations of the source were carried out on eight occasions by the EPIC-pn camera on board the XMM-Newton satellite from 2005 November to 2022 November. The good time intervals range between 3.6 and 24.1 hr. Three energy bands-0.2-2 keV (soft), 2-10 keV (hard), and 0.2-10 keV (total)-have been used to estimate variability. Low amplitude variations are observed in four, five, and six light curves in soft, hard, and total energy bands, respectively. Only two observation IDs have shown variation in the all energy bands. The discrete correlation function of the light curves in soft and hard energy bands peaks at zero lag, suggesting that the emission in both bands was cospatial and came from the same population of leptons. Red noise dominates the power spectral densities of variable light curves. According to our flux and spectrum investigations, both particle acceleration and synchrotron cooling mechanisms contribute significantly to the emission from this blazar. |
| WOS关键词 | SPECTRAL ENERGY-DISTRIBUTIONS ; ACTIVE GALACTIC NUCLEI ; LIGHT CURVES ; PKS 2155-304 ; POLARIZATION VARIABILITY ; PARTICLE-ACCELERATION ; PEAKED BLAZARS ; TEV BLAZARS ; 3C 273 ; FLUX |
| 资助项目 | National Key R&D Program of China[No. 2021YFA0718500] ; CAS 'Light of West China' Program[No. 2021-XBQNXZ-005] ; TianShan Talent training Program[No. 2023TSYCCX0099] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001683683600001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Key R&D Program of China ; CAS 'Light of West China' Program ; TianShan Talent training Program |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/8552]  |
| 专题 | 星系宇宙学研究团组 |
| 通讯作者 | Gupta, Alok C. |
| 作者单位 | 1.Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210023, Peoples R China 2.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210023, Peoples R China 3.Xinjiang Key Lab Radio Astrophys, 150 Sci 1 St, Urumqi 830011, Peoples R China 4.Aryabhatta Res Inst Observat Sci ARIES, Naini Tal 263001, India 5.Univ Chinese Acad Sci, Sch Astron & Space Sci, 1 Yanqihu East Rd, Beijing 101408, Peoples R China 6.Chinese Acad Sci, State Key Lab Radio Astron & Technol, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Tao,Gupta, Alok C.,Cui, Lang,et al. X-Ray Intraday Variability of the Blazar OJ 287 Observed with XMM-Newton[J]. ASTROPHYSICAL JOURNAL,2026,998(1):14. |
| APA | Huang, Tao.,Gupta, Alok C..,Cui, Lang.,Tripathi, Ashutosh.,Huang, Yongfeng.,...&Liu, Xiang.(2026).X-Ray Intraday Variability of the Blazar OJ 287 Observed with XMM-Newton.ASTROPHYSICAL JOURNAL,998(1),14. |
| MLA | Huang, Tao,et al."X-Ray Intraday Variability of the Blazar OJ 287 Observed with XMM-Newton".ASTROPHYSICAL JOURNAL 998.1(2026):14. |
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