Bulletin of the American Physical Society
APS April Meeting 2024
Wednesday–Saturday, April 3–6, 2024; Sacramento & Virtual
Session F13: Population Inference of Gravitational Wave Sources
8:30 AM–10:06 AM,
Thursday, April 4, 2024
SAFE Credit Union Convention Center
Room: Ballroom B8, Floor 2
Sponsoring
Unit:
DGRAV
Chair: Floor Broekgaarden, Columbia University
Abstract: F13.00007 : Uncovering the Origins of Binary Black Holes with Normalising Flows*
9:42 AM–9:54 AM
Presenter:
Storm Colloms
(Institute of Physics)
Authors:
Storm Colloms
(Institute of Physics)
Christopher P Berry
(University of Glasgow)
John Veitch
(University of Glasgow)
Michael J Zevin
(The Astrophysics of LIGO Sources)
A solution to this computational challenge is the use of machine learning to emulate the predictions from population synthesis. We demonstrate the use of normalising flows to solve this problem, interpolating between the populations predicted for different simulation inputs, and using the emulated distributions for hierarchical inference. Using population synthesis from leading formation channels as training data, we apply our approach to the current catalog of gravitational-wave observations to infer the branching ratios of different channels and details of binary stellar evolution.
*STFC Studentship 2748218, STFC ST/V001736/1
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