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SUMMARY:A large-scale dynamo via MRI-driven alpha Omega dynamo in binary n
 eutron star mergers  - Kenta Kiuchi (Max Planck Institute for Gravitationa
 l Physics)
DTSTART:20240520T130000Z
DTEND:20240520T140000Z
UID:TALK212149@talks.cam.ac.uk
CONTACT:Roger Dufresne
DESCRIPTION:We challenge the magnetar scenario for short gamma-ray bursts 
 by performing a high-resolution neutrino magnetohydrodynamics numerical re
 lativity simulation of a binary neutron star merger. We find the alpha Ome
 ga dynamo mediated by the magnetorotational instability generates the larg
 e-scale magnetic field in the merger remnant. The resultant large-scale fi
 eld is efficiently wrapped and drives a relativistic Poynting-flux dominat
 ed outflow from the merger remnant. 
LOCATION:MR14 DAMTP and online
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