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Natural SciencesAstronomyPhysicsAstrophysicsCosmologyExtragalactic AstronomyCompact ObjectsGalaxy MorphologyObservational CosmologyStellar ClassificationB-type StarsBlazhko EffectHubble DiagramHubble Sequence
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OJ 287 - Binary pair of supermassive black holes
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Natural Sciences, Astronomy, Physics +13
Relativistic bulk motion in active galactic nuclei
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Superluminal motion statistics and cosmology
R. C. Vermeulen, M. H. Cohen · The Astrophysical Journal · 1994 · 317 citations
Natural Sciences, Astronomy, Physics +11