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DOE OSTI · 2352688

Annual IC Progress Report

Ronning, Nicole Marie·Cheng, Roseanne Marie
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Abstract

The goal of this project is to computationally investigate the progenitors of astrophysical gamma-ray bursts (GRB), the most extreme explosions in the universe across length and time scales. We have developed a cutting-edge, code-bridging approach to exploring the physics behind these luminous events to test the hypothesis that GRBs with electromagnetic radio emission originate from massive star (MS) and black hole (BH) binary systems. Our multi-scale, multi-physics theoretical framework for GRBs is based on solving well-defined and testable hydrodynamics problems associated with the dynamical evolution of the system. We solve stages of the evolution in a tractable way with a suite of well-developed state-of-the-art computational tools that include the stellar evolution code MESA, the general relativistic magnetohydrodynamics (GRMHD) code Athena++, and the binary black hole (BBH) population synthesis code COSMIC, as well as a number of self-written python post-processing tools.

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79 ASTRONOMY AND ASTROPHYSICS97 MATHEMATICS AND COMPUTING

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Ronning, Nicole Marie, Cheng, Roseanne Marie. 2024-05-15. Annual IC Progress Report. https://doi.org/10.2172/2352688

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