Binary neutron stars: inspiral and merger

When binary neutron stars inspiral and finally merge they emit gravitational waves.

PSR J0737-3039: inspiral and merger

Ejected matter

The short clip shows the merger of two neutron stars with 1.34 and 1.25 solar masses. The blue material is the matter which becomes unbound and leaves the system. The most likely scenario is that ejected matter from neutron star mergers is the main source of heavy elements in the universe.

Numerical relativity simulation of two merging neutron stars with 1.34 and 1.25 solar masses.

Inspiral and merger of a neutron star binary

Numerical relativity simulation of two merging neutron stars with 1.34 and 1.25 solar masses.
https://www.youtube.com/watch?v=z-KtungvFnE

The image shows the material which is ejected during the merger of the two neutron stars.

Density, entropy, gravitational wave, and ejected material

The animation is a combination of different movies and shows inspiral and merger of two neutron stars with 1.34 and 1.25 solar masses. The different panels show the density (upper left), the entropy (upper right), the gravitational wave (lower left) and the ejected material (lower right).

In addition to the visualization we add sound. The sound track is generated in a way that we create a sinusoidal sound with the same frequency as the gravitational wave signal and with an amplitude varying proportional to the gravitational wave’s amplitude.

Numerical relativity simulation of two merging neutron stars with 1.34 and 1.25 solar masses (density, entropy, gravitational wave and ejected material)

Inspiral and merger of a neutron star binary

Numerical relativity simulation of two merging neutron stars with 1.34 and 1.25 solar masses (density, entropy, gravitational wave and ejected material)
https://www.youtube.com/watch?v=qPL6ZHBLFiI

Note: Publication of the images requires proper credits and written permission. Please contact the in advance of publication or for higher-resolution versions.

Credit:
T. Dietrich (Friedrich-Schiller-University Jena and Max Planck Institute for Gravitational Physics); BAM collaboration

The BAM collaboration is an international collaboration between the Florida Atlantic University, Friedrich-Schiller-University Jena, Istituto Nazionale di Fisica Nucleare, Max Planck Institute for Gravitational Physics, Università di Parma, Universidade Federal do ABC.

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