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Dual Jet Interaction, Magnetically Arrested Flows, and Flares in Accreting Binary Black Holes by Ressler, Sean M.; Combi, Luciano; Ripperda, Bart; Most, Elias R. is a scholarly article available to read on EtoBox.

What is Dual Jet Interaction, Magnetically Arrested Flows, and Flares in Accreting Binary Black Holes about?

Supermassive binary black holes in galactic centers are potential multimessenger sources in gravitational waves and electromagnetic radiation. To find such objects, isolating unique electromagnetic signatures of their accretion flow is key. With the aid of three-dimensional general-relativistic magnetohydrodynamic (GRMHD) simulations that utilize an approximate, semi-analytic, super-imposed spacetime metric, we identify two such signatures for merging binaries. Both involve magnetic reconnection and are analogous to plasma processes observed in the solar corona. The first, like colliding flux tubes that can cause solar flares, involves colliding jets that form an extended reconnection layer, dissipating magnetic energy and causing the two jets to merge. The second, akin to coronal mass ejection events, involves the accretion of magnetic field lines onto both black holes; these magnetic fields then twist, inflate, and form a trailing current sheet, ultimately reconnecting and driving a hot outflow. We provide estimates for the associated electromagnetic emission for both processes, showing that they likely accelerate electrons to high energies and are promising candidates for contin

Author

Ressler, Sean M.; Combi, Luciano; Ripperda, Bart; Most, Elias R.

Published

2024

Language

EN