4 papers
Constraint-satisfying binary boson star initial data via XCFC
Gabriele Palloni, Nicolas Sanchis-Gual, José A. Font +8
Numerical-relativity simulations with non-trivial matter configurations require initial data that satisfy the Hamiltonian and momentum constraints of the Einstein equations. We con…
Time integration for neutrino radiation transport using minimally implicit Runge-Kutta methods
Samuel Santos-Pérez, Martin Obergaulinger, Isabel Cordero-Carrión
The evolution of many astrophysical systems is dominated by the interaction between matter and radiation such as photons or neutrinos. The dynamics can be described by the evolutio…
Reformulation of Einstein equations in the Fully Constrained Formulation: local-uniqueness, post-Newtonian expansion and initial data
Samuel Santos-Pérez, Isabel Cordero-Carrión, Pablo Cerdá-Durán
Einstein equations can be written in the so-called Fully Constrained Formulation (FCF). This formulation has two different sectors: the elliptic sector, formed by the Hamiltonian a…
Numerical evolution of the resistive relativistic magnetohydrodynamic equations: a minimally implicit Runge-Kutta scheme
Isabel Cordero-Carrión, Samuel Santos-Pérez, Clara MartÃnez-Vidallach
We present the Minimally-Implicit Runge-Kutta (MIRK) methods for the numerical evolution of the resistive relativistic magnetohydrodynamic (RRMHD) equations, following the approach…