13 papers
Finding black hole spins efficiently during a numerical binary evolution
Himanshu Chaudhary, Rob Owen, Mark A. Scheel +1
The dynamics of a binary black hole system depend on its masses and spins. For a binary at finite separation, it is not possible to define these quantities in an unambiguous way; h…
Data-Driven Acceleration of Eccentricity Reduction for Binary Black Hole Simulations
Vittoria Tommasini, Nils L. Vu, Mark A. Scheel +1
Reducing orbital eccentricity in numerical relativity simulations of binary black holes is essential for producing astrophysically relevant gravitational wave models, as many of th…
Gauge Boundary conditions to mitigate center-of-mass drift in BBH simulations
Dongze Sun, Sizheng Ma, Mark A. Scheel +1
Long-term numerical relativity (NR) simulations of binary black hole (BBH) systems in the Spectral Einstein Code (SpEC) code exhibit an unexpected exponential drift of the center-o…
Characteristic Decomposition for Relativistic Numerical Simulations: II. Magnetohydrodynamics
Saul A. Teukolsky
The characteristic decomposition for GRMHD in the comoving frame of the fluid has been known for a long time. However, it has not been known in the coordinate frame of the simulati…
Characteristic Decomposition for Relativistic Numerical Simulations: I. Hydrodynamics
Saul A. Teukolsky
The characteristic decomposition for GRMHD is not known in a form useful for current numerical simulations. This prevents us from using the most accurate known computational method…
Error quantification and comparison of binary neutron star gravitational waveforms from numerical relativity codes
Sarah Habib, Elias R. Most, Nils Deppe +11
Future gravitational wave detections of merging binary neutron star systems have the possibility to tightly constrain the equation of state of dense nuclear matter. In order to ext…