3 papers
gr-qc2026
Comparing twist-free axisymmetric gravitational waves near the black hole threshold
Ananya Adhikari, Tomáš Ledvinka, Daniela Cors +4
The threshold of black hole formation in axisymmetric vacuum gravity is proving to be more complicated than had been anticipated but, following recent advances, a consensus between…
gr-qc2026
The N-Body 2PN Hamiltonian and Numerical Integration of the Equations of Motion
Felix M. Heinze, Gerhard Schäfer, Bernd Brügmann
To date, the second-order post-Newtonian (2PN) Hamiltonian has been known in closed analytic form only for systems of up to three point masses. In this paper, we present an analyti…
gr-qc2025
Magneto-Hydrodynamic Simulations of Eccentric Binary Neutron Star Mergers
Anna Neuweiler, Tim Dietrich, Bernd Brügmann
Highly eccentric binary neutron star mergers exhibit unique dynamical and observational signatures compared to quasi-circular ones in terms of their gravitational wave signal and t…