Neutron Star Tests with the Nmesh Program
ORAL
Abstract
We present the results from recent single Neutron Star test evolutions that we have performed using the discontinuous Galerkin method based Nmesh program. These include tests for the single Neutron Star to check long-time stability equilibrium configurations, consistency under perturbations, migration of an unstable configuration to a stable one and evolution of a boosted star. To allow for changing gravitational fields, we use the Generalized Harmonic system to evolve the metric of the Neutron star. We apply refinement to the mesh as necessary and relevant. We also study the effect of other aspects, such as application of filters, positivity limiters or the MRS limiter, and the use of an artificial atmosphere, on the runs.
–
Presenters
-
Ananya Adhikari
Florida Atlantic University
Authors
-
Ananya Adhikari
Florida Atlantic University
-
Wolfgang H Tichy
Florida Atlantic University
-
liwei Ji
Rochester Institute of Technology