A large-scale dynamo via MRI-driven alpha Omega dynamo in binary neutron star mergers

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• Kenta Kiuchi (Max Planck Institute for Gravitational Physics)
• Monday 20 May 2024, 14:00-15:00
• MR14 DAMTP and online.

If you have a question about this talk, please contact Roger Dufresne.

We challenge the magnetar scenario for short gamma-ray bursts by performing a high-resolution neutrino magnetohydrodynamics numerical relativity simulation of a binary neutron star merger. We find the alpha Omega dynamo mediated by the magnetorotational instability generates the large-scale magnetic field in the merger remnant. The resultant large-scale field is efficiently wrapped and drives a relativistic Poynting-flux dominated outflow from the merger remnant.

This talk is part of the DAMTP Astrophysics Seminars series.

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