20–28 Mar 2025
Emperors Palace Hotel Casino Convention Resort
Africa/Johannesburg timezone

Physics of Core-Collapse Supernovae - Sedov-Taylor Blast-wave Simulation

Not scheduled
15m
Emperors Palace Hotel Casino Convention Resort

Emperors Palace Hotel Casino Convention Resort

64 Jones Rd, Kempton Park, Johannesburg, 1620
Poster

Speaker

Mr Chinedu Jude Nnaji (University of the Witwatersrand (Wits))

Description

This study investigates the dynamics of core-collapse supernovae (SNe), phenomena critical to understanding stellar explosions and the evolution of supernova remnants (SNRs). Leveraging the Sedov-Taylor blast-wave theory—a foundational model for explosion mechanics—we explore shock-wave behavior in supernovae, focusing on energy propagation, velocity and density evolution, and shock interactions.

Simulations were conducted using the PLUTO code, a versatile computational tool in astrophysics, under specified initial conditions. Resolved forms of the Sedov-Taylor solutions were derived, and test simulations were implemented to validate the methodology. The output datasets, normalized and saved in '.tab' format, are compatible with visualization tools such as Gnuplot, Python, VisIt, and ParaView.

Preliminary results align with analytical solutions from prior studies, providing critical insights into the physical processes governing supernova dynamics. This work lays the foundation for future analyses, contributing to a deeper understanding of supernova evolution and advancing simulation techniques in astrophysics.

This work is part of the NiTheCS-2024 research internship at Nelson Mandela University.

Stream Science

Primary author

Mr Chinedu Jude Nnaji (University of the Witwatersrand (Wits))

Co-authors

Dr Dawit Worku (CPUT) Ms Mohlao Seabi (NMU)

Presentation materials

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