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Jet precession in binary black holes

Supermassive binary black holes are thought to lie at the centres of merging galaxies. The blazar OJ 287 is the poster child of such systems, showing strong and periodic variability across the electromagnetic spectrum. A new study questions the physical origin of this variability.

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Fig. 1: Potential geometries for the active nucleus of OJ 287.


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Correspondence to Zulema Abraham.

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Abraham, Z. Jet precession in binary black holes. Nat Astron 2, 443–444 (2018).

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