München 2019 – wissenschaftliches Programm

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SYPS: Symposium Extreme matter meets extreme gravity

SYPS 1: Extreme matter meets extreme gravity

SYPS 1.2: Hauptvortrag

Mittwoch, 20. März 2019, 15:40–16:10, HS 5

Modelling and analyzing a binary neutron-star merger: Interpreting a multi-messenger picture — •Tim Dietrich — Nikhef, Amsterdam, Netherlands

With the detection of the binary neutron-star merger GW170817 a new era of multi-messenger astronomy started. GW170817 proved that neutron-star mergers are ideal laboratories to constrain the equation of state of cold supranuclear matter, to study the central engines of short GRBs, to understand the origin and production of heavy elements, to measure the expansion of the universe, and to determine the speed of gravitational waves. In the talk, we give an overview about some of the interesting insights we learned from GW170817 and present work crucial for this recent scientific success. In particular, we discuss the development of accurate gravitational waveform models, employed data analysis tools, and the progress made in the field of numerical relativity and in the modelling of electromagnetic signals arising from binary neutron-star mergers.