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arXiv · 1303.0837

Numerical Relativity Simulations of Magnetized Black Hole-Neutron Star Mergers

Zachariah B. Etienne·Yuk Tung Liu·Vasileios Paschalidis·Stuart L. Shapiro
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Abstract

We present new numerical techniques we developed for launching the first parameter study of {\it magnetized} black hole--neutron star (BHNS) mergers, varying the magnetic fields seeded in the initial neutron star. We found that magnetic fields have a negligible impact on the gravitational waveforms and bulk dynamics of the system during merger, regardless of magnetic field strength or BH spin. In a recent simulation, we seeded the remnant disk from an unmagnetized BHNS merger simulation with large-scale, purely poloidal magnetic fields, which are otherwise absent in the full simulation. The outcome appears to be a viable sGRB central engine.

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Zachariah B. Etienne, Yuk Tung Liu, Vasileios Paschalidis, Stuart L. Shapiro. 2013-03-04. Numerical Relativity Simulations of Magnetized Black Hole-Neutron Star Mergers. https://arxiv.org/abs/1303.0837

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