2007/06/01 by S. J. Qian, Shan-Jie Qian, N. A. Kudryavtseva +9
Physics and Astronomy · #Angular momentum #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Binary number #Black hole (networking) #Classical mechanics #Doppler effect #Galaxy #Gamma-ray bursts and supernovae #Light curve #Orbital motion #Orbital period #Physics #Pulsars and Gravitational Waves Research #Redshift #Rest frame #Stars #astro-ph
paper · pdf · doi:10.1088/1009-9271/7/3/05
published as Chin.Astron.Astrophys.7:364,2007 · 15 pages, 11 figures
openalex publication_date 2007/06/01 · arxiv created 2007/10/09 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
During the period 1966.5–2006.2 the 15 GHz and 8 GHz light curves of 3C 454.3 ( z = 0.859) show a quasi-periodicity of ∼12.8 yr (∼6.9 yr in the rest frame of the source) with a double-bump structure. This periodic behaviour is interpreted in terms of a rotating double-jet model in which the two jets are created from the black holes of a binary system and rotating with the period of the orbital motion. The periodic variations in the radio fluxes of 3C 454.3 are suggested to be mainly due to the lighthouse effects (or the variation in Doppler boosting) of the precessing jets caused by the orbital motion. In addition, variations in the rate of mass accreting onto the black holes may be also involved.