New Astronomy · 2011 · 49 citations · 114 references
Relativistic AstrophysicsBlack Hole MassBlack Hole DynamicEngineeringPhysicsBlack Hole PhysicsNatural SciencesBlack HoleSynchrotron RadiationObservational CosmologyHigh-energy AstrophysicsAstrophysics
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OJ 287 - Binary pair of supermassive black holes
A. Sillanpää, S. Haarala, M. J. Valtonen et al. · The Astrophysical Journal · 1988 · 588 citations