scholarly journals Closed-form tidal approximants for binary neutron star gravitational waveforms constructed from high-resolution numerical relativity simulations

2017 ◽  
Vol 96 (12) ◽  
Author(s):  
Tim Dietrich ◽  
Sebastiano Bernuzzi ◽  
Wolfgang Tichy
Keyword(s):  
Neutron Star ◽  
High Resolution ◽  
Closed Form ◽  
Numerical Relativity ◽  
Binary Neutron Star

scholarly journals Binary Neutron Star and Short Gamma-Ray Burst Simulations in Light of GW170817

Galaxies ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 119 ◽  
Author(s):  
Antonios Nathanail
Keyword(s):  
Neutron Star ◽  
Gravitational Wave ◽  
Electromagnetic Radiation ◽  
Numerical Simulations ◽  
Gravitational Waves ◽  
Gamma Ray ◽  
Numerical Relativity ◽  
Gamma Ray Burst ◽  
Binary Neutron Star ◽  
The Status

In the dawn of the multi-messenger era of gravitational wave astronomy, which was marked by the first ever coincident detection of gravitational waves and electromagnetic radiation, it is important to take a step back and consider our current established knowledge. Numerical simulations of binary neutron star mergers and simulations of short GRB jets must combine efforts to understand such complicated and phenomenologically rich explosions. We review the status of numerical relativity simulations with respect to any jet or magnetized outflow produced after merger. We compare what is known from such simulations with what is used and obtained from short GRB jet simulations propagating through the BNS ejecta. We then review the established facts on this topic, as well as discuss things that need to be revised and further clarified.

scholarly journals Neutron star merger remnants

2020 ◽  
Vol 52 (11) ◽  
Author(s):  
Sebastiano Bernuzzi
Keyword(s):  
Neutron Star ◽  
Nuclear Matter ◽  
Gravitational Wave ◽  
Weak Interactions ◽  
Numerical Relativity ◽  
Current Understanding ◽  
Fundamental Physics ◽  
Binary Neutron Star ◽  
General Relativistic ◽  
Relativistic Models

AbstractBinary neutron star mergers observations are a unique way to constrain fundamental physics and astrophysics at the extreme. The interpretation of gravitational-wave events and their electromagnetic counterparts crucially relies on general-relativistic models of the merger remnants. Quantitative models can be obtained only by means of numerical relativity simulations in $$3+1$$ 3 + 1 dimensions including detailed input physics for the nuclear matter, electromagnetic and weak interactions. This review summarizes the current understanding of merger remnants focusing on some of the aspects that are relevant for multimessenger observations.

scholarly journals Reanalysis of the binary neutron star mergers GW170817 and GW190425 using numerical-relativity calibrated waveform models

2020 ◽  
Vol 2 (4) ◽  
Author(s):  
Tatsuya Narikawa ◽  
Nami Uchikata ◽  
Kyohei Kawaguchi ◽  
Kenta Kiuchi ◽  
Koutarou Kyutoku ◽  
...  
Keyword(s):  
Neutron Star ◽  
Numerical Relativity ◽  
Binary Neutron Star

scholarly journals Numerical-relativity simulations of long-lived remnants of binary neutron star mergers

2020 ◽  
Vol 101 (6) ◽  
Author(s):  
Roberto De Pietri ◽  
Alessandra Feo ◽  
José A. Font ◽  
Frank Löffler ◽  
Michele Pasquali ◽  
...  
Keyword(s):  
Neutron Star ◽  
Numerical Relativity ◽  
Binary Neutron Star

scholarly journals Numerical relativity simulations of precessing binary neutron star mergers

2018 ◽  
Vol 97 (6) ◽  
Author(s):  
Tim Dietrich ◽  
Sebastiano Bernuzzi ◽  
Bernd Brügmann ◽  
Maximiliano Ujevic ◽  
Wolfgang Tichy
Keyword(s):  
Neutron Star ◽  
Numerical Relativity ◽  
Binary Neutron Star
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