The Multimessenger Picture of Binary Neutron Star Mergers Tim - - PowerPoint PPT Presentation
The Multimessenger Picture of Binary Neutron Star Mergers Tim Dietrich Nikhef National Dutch Institute for Subatomic Physics, Amsterdam Groningen 29 th of Mai 2018 Multimessenger Picture Gravitational Electromagnetic Neutrinos Waves
Nikhef – National Dutch Institute for Subatomic Physics, Amsterdam
Groningen 29th of Mai 2018
luminosity
~ 164 physical systems ~ ca. 400 individual simulations ~150 million CPUhs
LIGO detected several hundred
TD et al., PRD96 (2017) 121501 TD et al., PDP 2018: CFP18169
clean convergence across multiple resolutions NR phase uncertainties below the difference to state-of-the-art analytical waveform models
PN EOB NR
Ansatz: in PN (NLO): Incorporate EOB/NR information: NRtidal became the standard model to interpret BNS data within the LSC
Phys.Rev.Lett. 119 (2017) no.16, 161101
GW observations favor NSs with smaller radii
NRTidal model gives 80% lower bound
Metzger, arxiv:1710.05931
– dynamical ejecta: – tidal tail – shock heating – disk winds – neutrino driven winds – magnetic winds – secular
TD, Ujevic CQG. 34 (2017), 105014 Coughlin, TD et al, APJ. 849 (2017) no.1, 12
Coughlin, TD, et al., arXiv:1805.09371
Full radiative transfer simulation linked to Gaussian Process Regression to access full parameter space
Coughlin, TD, et al., arXiv:1805.09371
Full radiative transfer simulation linked to Gaussian Process Regression to access full parameter space