15 citations · 40 across the 11 of their papers we have counts for
12 papers
Multi-messenger and multi-band signal from first-order phase transitions in proto-neutron stars
Christian Ecker, Mauro Giliberti, Luciano Rezzolla
A first-order phase transition (PT) alters a compact star on two scales: globally, via growth of a quark-matter core, and microscopically, via collision of quark bubbles, driving a…
GRACE: An Open-Source Framework for GPU-Accelerated Numerical Relativity
Carlo Musolino, Christian Ecker, Konrad Topolski +6
We present GRACE, a new GPU-accelerated numerical-relativity framework designed to run efficiently on heterogeneous high-performance computing platforms. Developed from scratch and…
General gravitational properties of neutron stars: curvature invariants, binding energy, and trace anomaly
Iván Garibay, Christian Ecker, Luciano Rezzolla
We investigate the behavior of curvature invariants for a large ensemble of neutron stars built with equations of state (EOSs) that satisfy constraints from nuclear theory and pert…
Strong model-agnostic constraints for twin-star solutions
Sofia Blomqvist, Christian Ecker, Tyler Gorda +1
We perform a model-agnostic Bayesian analysis of the neutron-star-matter equation of state (EoS), using known ab-initio constraints and astrophysical observations to limit its beha…
On the maximum compactness of neutron stars
Luciano Rezzolla, Christian Ecker
The stellar compactness, that is, the dimensionless ratio between the mass and radius of a compact star, , plays a fundamental role in characterising the gravit…
Listening to the long ringdown: A novel way to pinpoint the EOS in neutron-star cores
Christian Ecker, Tyler Gorda, Aleksi Kurkela +1
Gravitational waves (GWs) from binary neutron star (BNS) merger remnants complement constraints from the inspiral phase, mass-radius measurements, and microscopic theory by providi…
Locating the QCD critical point with neutron-star observations
Christian Ecker, Niko Jokela, Matti Järvinen
We present a probabilistic model for the QCD critical endpoint (CEP) and the equation of state (EOS) at -equilibrium, constrained by neutron-star observations. Using a hybrid fr…
Towards holographic color superconductivity in QCD
Jesús Cruz Rojas, Tuna Demircik, Christian Ecker +1
We extend the holographic V-QCD model by introducing a charged scalar field sector to represent the condensation of paired quark matter in the deconfined phase. By incorporating th…
Physics-Informed Priors Improve Gravitational-Wave Constraints on Neutron-Star Matter
Spencer J. Magnall, Christian Ecker, Luciano Rezzolla +2
Gravitational-wave astronomy shows great promise in determining nuclear physics in a regime not accessible to terrestrial experiments. We introduce physics-informed priors constrai…
Constraining the equation of state in neutron-star cores via the long-ringdown signal
Christian Ecker, Tyler Gorda, Aleksi Kurkela +1
Multimessenger signals from binary neutron star (BNS) mergers are promising tools to infer the largely unknown properties of nuclear matter at densities that are presently inaccess…
Prompt Black Hole Formation in Binary Neutron Star Mergers
Christian Ecker, Konrad Topolski, Matti Järvinen +1
We carry out an in-depth analysis of the prompt-collapse behaviour of binary neutron star (BNS) mergers. To this end, we perform more than general relativistic BNS merger simu…
A hybrid approach to long-term binary neutron-star simulations
Harry Ho-Yin Ng, Jin-Liang Jiang, Carlo Musolino +3
One of the main challenges in the numerical modeling of binary neutron-star (BNS) mergers is long-term simulations of the post-merger remnant over timescales of the order of second…