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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
2017-11-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume849Issue:1Pages:6
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.

Keywordgalaxies: active galaxies: individual (Mrk 766) galaxies: nuclei X-rays: galaxies
DOI10.3847/1538-4357/aa8d6e
WOS KeywordSAMPLED TIME-SERIES ; BLACK-HOLE ; XMM-NEWTON ; GRO J1655-40 ; SPACED DATA ; OSCILLATIONS ; DISCOVERY ; INSTABILITY ; MRK-766 ; SIGNALS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000413701400009
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22572
Collection中国科学院紫金山天文台
Corresponding AuthorZhang, Peng-fei
Affiliation1.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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