Los Alamos National Laboratory

Los Alamos National Laboratory

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Binary merger

The merger of two equal mass neutron stars is simulated using the 3-D code SNSPH.
November 2, 2017
The merger of two equal mass neutron stars is simulated using the 3-D code SNSPH.

The merger of two equal mass neutron stars is simulated using the 3-D code SNSPH.

The merger of two equal mass neutron stars is simulated using the 3-D code SNSPH. As the two stars merge, their outer edge ejects a spiral of neutron-rich material. The radioactivity in this ejected material is the primary power source for the optical and infrared light observed in the kilonova. A single hyper-massive neutron star remains at the center in a wide field of ejecta material. This hyper-massive neutron star will quickly collapse to a black hole.


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