Long-term simulations of dynamical ejecta: Homologous expansion and kilonova properties
Anna Neuweiler, Tim Dietrich, Mattia Bulla, Swami Vivekanandji Chaurasia, Stephan Rosswog, Maximiliano Ujevic
Abstract
Binary neutron star mergers result in relatively long-lived transient states known as kilonovae. By developing methods that allow numerical relativity simulations to describe far longer periods of time than previously possible, the assumptions used in radiative transfer simulations of the ejecta are subjected to scrutiny and a far more nuanced picture is developed indicating when the assumptions become valid.
Topics & Concepts
KilonovaEjectaPhysicsAstrophysicsRadiative transferMagnetarLight curveNeutron starBinary numberGeneral relativityTheoretical physicsSupernovaQuantum mechanicsMathematicsArithmeticGamma-ray bursts and supernovaePulsars and Gravitational Waves ResearchAstrophysics and Cosmic Phenomena