742 citations · 1k across the 11 of their papers we have counts for
11 papers
MHDuet : a high-order General Relativistic Radiation MHD code for CPU and GPU architectures
Carlos Palenzuela, Miguel Bezares, Steven Liebling +12
We present MHDuet, an open source evolution code for general relativistic magnetohydrodynamics with neutrino transport. The code solves the full set of Einstein equations coupled t…
GRTresna: An open-source code to solve the initial data constraints in numerical relativity
Josu C. Aurrekoetxea, Sam E. Brady, Llibert Aresté-Saló +11
GRTresna is a multigrid solver designed to solve the constraint equations for the initial data required in numerical relativity simulations. In particular, it is focussed on scenar…
GRDzhadzha: A code for evolving relativistic matter on analytic metric backgrounds
Josu C. Aurrekoetxea, Jamie Bamber, Sam E. Brady +5
GRDzhadzha is an open-source code for relativistic simulations of matter fields on curved spacetimes that admit an analytic description (e.g. stationary black holes). It is based o…
Unequal-mass boson-star binaries: Initial data and merger dynamics
Tamara Evstafyeva, Ulrich Sperhake, Thomas Helfer +4
We present a generalization of the curative initial data construction derived for equal-mass compact binaries in Helfer {\it et al} (2019 Phys. Rev. D 99 044046; 2022 Class. Quantu…
The Gravitational Afterglow of Boson Stars
Robin Croft, Thomas Helfer, Bo-Xuan Ge +5
In this work we study the long-lived post-merger gravitational wave signature of a boson-star binary coalescence. We use full numerical relativity to simulate the post-merger and t…
GRChombo: An adaptable numerical relativity code for fundamental physics
Tomas Andrade, Llibert Areste Salo, Josu C. Aurrekoetxea +29
GRChombo is an open-source code for performing Numerical Relativity time evolutions, built on top of the publicly available Chombo software for the solution of PDEs. Whilst GRChomb…
Lessons for adaptive mesh refinement in numerical relativity
Miren Radia, Ulrich Sperhake, Amelia Drew +7
We demonstrate the flexibility and utility of the Berger-Rigoutsos Adaptive Mesh Refinement (AMR) algorithm used in the open-source numerical relativity code GRChombo for generatin…
The critical layer in quadratic flow boundary layers over acoustic linings
Matthew J. King, Edward J. Brambley, Renan Liupekevicius +3
A straight cylindrical duct is considered containing an axial mean flow that is uniform everywhere except within a boundary layer near the wall, which need not be thin. Within this…
Malaise and remedy of binary boson-star initial data
Thomas Helfer, Ulrich Sperhake, Robin Croft +3
Through numerical simulations of boson-star head-on collisions, we explore the quality of binary initial data obtained from the superposition of single-star spacetimes. Our results…
Anomalies in the gravitational recoil of eccentric black-hole mergers with unequal mass ratios
Miren Radia, Ulrich Sperhake, Emanuele Berti +1
The radiation of linear momentum imparts a recoil (or "kick") to the center of mass of a merging black hole binary system. Recent numerical relativity calculations have shown that…
Black holes, gravitational waves and fundamental physics: a roadmap
Leor Barack, Vitor Cardoso, Samaya Nissanke +203
The grand challenges of contemporary fundamental physics---dark matter, dark energy, vacuum energy, inflation and early universe cosmology, singularities and the hierarchy problem-…