May 16 – 18, 2025
College of Management, National Formosa University 國立虎尾科技大學第三校區文理暨管理大樓
Asia/Taipei timezone
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Effects of Magnetoconvection in Core-Collapse Supernovae

Not scheduled
20m
International Conference Hall 圓形國際會議廳 (College of Management, National Formosa University 國立虎尾科技大學第三校區文理暨管理大樓)

International Conference Hall 圓形國際會議廳

College of Management, National Formosa University 國立虎尾科技大學第三校區文理暨管理大樓

632 雲林縣虎尾鎮民主路63號文理暨管理大樓 第三校區圓形國際會議廳(文理暨管理大樓一樓) National Formosa University, 1F College of Managment, Huwei Township, Yunlin County, Taiwan
Board: 70
Poster Poster-HE

Speaker

He-Feng Hsieh (Institute of Astrophysics and Department of Physics, National Taiwan University)

Description

Multi-dimensional instabilities coupled with magnetic fields, such as the magnetorotational instability (MRI), are considered important contributors to the explosion mechanism of core-collapse supernovae in extreme scenarios. In this work, we present three-dimensional simulations of a 40-solar-mass progenitor using the GPU-accelerated magnetohydrodynamics code GAMER. We investigate the effects of magnetic field strength, initial rotation, and spatial resolution on the explosion dynamics and resulting multi-messenger signals. Our preliminary results indicate that MRI can be triggered in the convective region within the proto-neutron star when the spatial resolution reaches below 250 meters. The development of MRI leaves distinct multi-messenger signatures, which may be detectable in future gravitational wave observations.

Section High Energy

Primary author

He-Feng Hsieh (Institute of Astrophysics and Department of Physics, National Taiwan University)

Co-authors

Prof. Hsi-Yu Schive (Institute of Astrophysics and Department of Physics, National Taiwan University; Theoretical and Computational Astrophysics, National Center for Theoretical Sciences) Inhyeok Song (Institute of Astronomy, National Tsing Hua University) Prof. Kuo-Chuan Pan (Institute of Astronomy and Department of Physics, National Tsing Hua University; Theoretical and Computational Astrophysics, National Center for Theoretical Sciences)

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