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Suppressed accretion onto massive black hole binaries surrounded by thin disks
Christopher Tiede, Jonathan Zrake, Andrew MacFadyen +1
We demonstrate that gas disks around binary systems might deliver gas to the binary components only when the circumbinary disk is relatively warm. We present new grid-based hydrody…
How Binaries Accrete: Hydrodynamic Simulations with Passive Tracer Particles
Christopher Tiede, Jonathan Zrake, Andrew MacFadyen +1
Linear analysis of gas flows around orbiting binaries suggests that a centrifugal barrier ought to clear a low-density cavity around the binary and inhibit mass transfer onto it. M…
Gas-driven inspiral of binaries in thin accretion disks
Christopher Tiede, Jonathan Zrake, Andrew MacFadyen +1
Numerical studies of gas accretion onto supermassive black hole binaries (SMBHBs) have generally been limited to conditions where the circumbinary disk (CBD) is 10-100 times thicke…
Accretion into the Central Cavity of a Circumbinary Disk
Daniel J. D'Orazio, Zoltán Haiman, Andrew MacFadyen
A near-equal mass binary black hole can clear a central cavity in a circumbinary accretion disk; however, previous works have revealed accretion streams entering this cavity. Here…