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| An X-Ray Periodicity of similar to 1.8 hr in Narrow-line Seyfert 1 Galaxy Mrk 766 | |
Zhang, Peng1,2; Zhang, Peng-fei1,3; Yan, Jing-zhi1 ; Fan, Yi-zhong1,4; Liu, Qing-zhong1,4
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| 2017-11-01 | |
| Source Publication | ASTROPHYSICAL JOURNAL
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| ISSN | 0004-637X |
| Volume | 849Issue:1Pages:6 |
| Corresponding Author | Zhang, Peng-fei(zhangpengfee@pmo.ac.cn) |
| Abstract | In the narrow-line Seyfert 1 galaxy Mrk 766, a quasi-periodic oscillation (QPO) signal with a period of similar to 6450 s is detected in the XMM-Newton data collected on 2005 May 31. This QPO signal is highly statistically significant at the similar to 5 sigma confidence level, with a quality factor of Q = f / Delta f > 13.6. The X-ray intensity changed by a factor of 3, with a root mean square fractional variability of 14.3%. Furthermore, this QPO signal is present in the data of all three EPIC detectors and two RGS cameras and its frequency follows the f(QPO)-M-BH relation spanning from stellar-mass to supermassive black holes. Interestingly, a possible QPO signal with a period of similar to 4200 s had been reported in the literature. The frequency ratio of these two QPO signals is similar to 3:2. Our result is also in support of the hypothesis that the QPO signals can just be transient. The spectral analysis reveals that the contribution of the soft excess component below similar to 1 keV is different between epochs with and without QPO. This property, as well as the former frequency ratio, are well-detected in X-ray BH binaries, which may shed some light on the physical origins of our event. |
| Keyword | galaxies: active galaxies: individual (Mrk 766) galaxies: nuclei X-rays: galaxies |
| DOI | 10.3847/1538-4357/aa8d6e |
| WOS Keyword | SAMPLED TIME-SERIES ; BLACK-HOLE ; XMM-NEWTON ; GRO J1655-40 ; SPACED DATA ; OSCILLATIONS ; DISCOVERY ; INSTABILITY ; MRK-766 ; SIGNALS |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000413701400009 |
| Publisher | IOP PUBLISHING LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://libir.pmo.ac.cn/handle/332002/22572 |
| Collection | 中国科学院紫金山天文台 |
| Corresponding Author | Zhang, Peng-fei |
| Affiliation | 1.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100012, Peoples R China 3.Yunnan Univ, Key Lab Astroparticle Phys Yunnan Prov, Kunming 650091, Yunnan, Peoples R China 4.Univ Sci & Technol China, Sch Astron & Space Sci, Hefei 230026, Anhui, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Peng,Zhang, Peng-fei,Yan, Jing-zhi,et al. An X-Ray Periodicity of similar to 1.8 hr in Narrow-line Seyfert 1 Galaxy Mrk 766[J]. ASTROPHYSICAL JOURNAL,2017,849(1):6. |
| APA | Zhang, Peng,Zhang, Peng-fei,Yan, Jing-zhi,Fan, Yi-zhong,&Liu, Qing-zhong.(2017).An X-Ray Periodicity of similar to 1.8 hr in Narrow-line Seyfert 1 Galaxy Mrk 766.ASTROPHYSICAL JOURNAL,849(1),6. |
| MLA | Zhang, Peng,et al."An X-Ray Periodicity of similar to 1.8 hr in Narrow-line Seyfert 1 Galaxy Mrk 766".ASTROPHYSICAL JOURNAL 849.1(2017):6. |
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