arXiv:1906.07726 Abstract | arXiv Analytics

arXiv:1906.07726 [astro-ph.HE]Abstract References Reviews Resources

Binary Mergers near a Supermassive Black Hole: Relativistic Effects in Triples

Published 2019-06-18Version 1

We study the general relativitic (GR) effects induced by a supermassive black hole on the orbital and spin evolution of a merging black hole binary (BHB) in a hierarchical triple system. A sufficiently inclined outer orbit can excite Lidov-Kozai eccentricity oscillations in the BHB and induce its merger. These GR effects generate extra precessions on the BHB orbits and spins, significantly increasing the inclination window for mergers and producing a wide range of spin orientations when the BHB enters LIGO band. This "GR-enhanced" channel may play an important role in BHB mergers.

Comments: 7 pages, 5 figures, 3 appendixes. To be submitted

Categories: astro-ph.HE, gr-qc

Keywords: supermassive black hole, binary mergers, relativistic effects, gr effects generate extra precessions, bhb enters ligo band

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