Multiband Variability Analysis of 3C 454.3 and Implications for the Center Structure
作者： H. Z. Li , L. E. Chen , T. F. Yi , Y. G. Jiang , X. Chen
DOI: 10.1086/679753
关键词: Light curve 、 Infrared 、 Electron 、 Magnetic field 、 Population 、 Binary black hole 、 Physics 、 Astrophysics 、 Precession 、 Jet (fluid)
摘要: We have analyzed the light curves of 3C 454.3 at infrared, optical, soft X-ray (0.3-10 keV), and γ-ray (0.1-300 GeV) waveband, found evidence quasi-periodicity. The show that is a strongly active object. A period signal P = 210.8 ± 12.1 days confirmed by two methods consistently: Lomb-Scargle periodogram Jurkevich method. variations X-ray, are well correlated, which suggests these seven band emissions originate from same population electrons in jet. multifrequency emission fluxes may be caused nonballistic helical motion emitting components jet, has precession magnetic field. Moreover, provide some for existence supermassive binary black hole (SMBBH) system center 454.3.
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