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YouTube

Accretion Disk Formation in LIGO Black Hole Binaries - Enrico Ramirez-Ruiz

Kavli Institute for Theoretical Physics via YouTube

Overview

Explore the formation of accretion disks in LIGO black hole binaries through this 32-minute conference talk by Enrico Ramirez-Ruiz from UCSC. Delve into the evolution and influence of circumbinary gas on binary systems, from stellar to supermassive black holes. Examine observational signatures, numerical modeling techniques, and the similarities between massive black hole and stellar binary systems. Learn about the formation of close black hole binaries, accretion during common envelope phases, and the environmental influence of gas on binaries. Investigate topics such as fallback accretion disks, tidal excitation of spiral waves, and the hydrodynamics of binaries embedded in AGN disks. Gain insights into the prospects for electromagnetic counterparts and understanding flow geometry in these complex systems.

Syllabus

Intro
A tale of two cities
Outline - Accretion disk formation during hinary assembly
Formation of close BH binaries in the field
Accretion during common envelope
The Importance of compressibility
Fallback accretion disks
Tidal excitation of spiral waves in accretion discs
The environmental influence of gas on binaries
Characteristic length scales
Timescale for orbital decay
The importance of environment
Interlude: hierarchical triples
Hydrodynamic of binaries embedded in AGN disks
accretion timescales
Postlude: Prospects for EM counterparts
Understanding the flow geometry

Taught by

Kavli Institute for Theoretical Physics

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