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Periodic optical variability of AGN

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arxiv 1702.07210 v1 pith:VIGACMO6 submitted 2017-02-23 astro-ph.GA astro-ph.HE

Periodic optical variability of AGN

classification astro-ph.GA astro-ph.HE
keywords curvesopticalperiodicperiodicitypossiblevariabilityblackcentral
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Here we present the evidence for periodicity of an optical emission detected in several AGN. Significant periodicity is found in light curves and radial velocity curves. We discuss possible mechanisms that could produce such periodic variability and their implications. The results are consistent with possible detection of the orbital motion in proximity of the AGN central supermassive black holes.

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