28 citations · 63 across the 7 of their papers we have counts for
7 papers
Nonlinear Alfvén-wave Dynamics and Premerger Emission from Crustal Oscillations in Neutron Star Mergers
Elias R. Most, Yoonsoo Kim, Katerina Chatziioannou +1
Neutron stars have solid crusts threaded by strong magnetic fields. Perturbations in the crust can excite non-radial oscillations, which can in turn launch Alfven waves into the ma…
Binary neutron star mergers using a discontinuous Galerkin-finite difference hybrid method
Nils Deppe, Francois Foucart, Marceline S. Bonilla +18
We present a discontinuous Galerkin-finite difference hybrid scheme that allows high-order shock capturing with the discontinuous Galerkin method for general relativistic magnetohy…
General relativistic force-free electrodynamics with a discontinuous Galerkin-finite difference hybrid method
Yoonsoo Kim, Elias R. Most, William Throwe +2
Relativistic plasmas around compact objects can sometimes be approximated as being force-free. In this limit, the plasma inertia is negligible and the overall dynamics is governed…
A positivity-preserving adaptive-order finite-difference scheme for GRMHD
Nils Deppe, Lawrence E. Kidder, Saul A. Teukolsky +6
We present an adaptive-order positivity-preserving conservative finite-difference scheme that allows a high-order solution away from shocks and discontinuities while guaranteeing p…
Simulating neutron stars with a flexible enthalpy-based equation of state parametrization in SpECTRE
Isaac Legred, Yoonsoo Kim, Nils Deppe +4
Numerical simulations of neutron star mergers represent an essential step toward interpreting the full complexity of multimessenger observations and constraining the properties of…
Simulating magnetized neutron stars with discontinuous Galerkin methods
Nils Deppe, François Hébert, Lawrence E. Kidder +33
Discontinuous Galerkin methods are popular because they can achieve high order where the solution is smooth, because they can capture shocks while needing only nearest-neighbor com…
On non-Abelian T-duality for non-semisimple groups
Moonju Hong, Yoonsoo Kim, Eoin Ó Colgáin
We revisit non-Abelian T-duality for non-semisimple groups, where it is well-known that a mixed gravitational-gauge anomaly leads to -models that are scale, but not Weyl-invaria…