4–7 Sept 2023
Wenner-Gren Center
Europe/Stockholm timezone

Multi-dimensional kilonova radiative transfer from merger simulations

5 Sept 2023, 12:15
20m
Wenner-Gren Center

Wenner-Gren Center

Sveavägen 166 11324 Stockholm
Contributed talk Tuesday morning

Speaker

Christine Collins (GSI Helmholtz Centre for Heavy Ion Research)

Description

The detection of GW170817 and the accompanying electromagnetic counterpart, AT2017gfo, have provided an important set of observational constraints for the high density Equation of State and r-process nucleosynthesis. To interpret the observations of AT2017gfo, detailed theoretical models are required. The majority of binary neutron star ejecta models considered when simulating kilonovae have been in 1D, or even idealised toy models, which have neglected the complexities related to hydrodynamics modelling. Few kilonova simulations have carried out full 3D simulations of the merger and subsequent kilonova. We use the 3D Monte Carlo radiative transfer code ARTIS to carry out simulations based on the dynamical ejecta from 3D smoothed-particle hydrodynamics neutron star merger simulations, including a sophisticated neutrino treatment. We present line-of-sight dependent synthetic observables, and discuss the angle dependence, as well as compare to the observations of AT2017gfo.

Primary author

Christine Collins (GSI Helmholtz Centre for Heavy Ion Research)

Co-authors

Luke Shingles (GSI Helmholtzzentrum für Schwerionenforschung GmbH) Vimal Vijayan (GSI Helmholtzzentrum für Schwerionenforschung GmbH) Andreas Flörs (GSI Darmstadt) Oliver Just (GSI Helmholtzzentrum für Schwerionenforschung) Gerrit Leck (GSI Helmholtzzentrum für Schwerionenforschung GmbH) Zewei Xiong (GSI Helmholtzzentrum für Schwerionenforschung GmbH) Andreas Bauswein (GSI Helmholtzzentrum für Schwerionenforschung) Gabriel Martínez-Pinedo (GSI Helmholtzzentrum für Schwerionenforschung GmbH) Stuart Sim (Queen's University Belfast)

Presentation materials