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17 August 2017: Gravitational wave detected from merger of two neutron stars (00:23 video; artist concept). On 17 August 2017, the LIGO and Virgo interferometers observed GW170817, [7] a gravitational wave associated with the merger of a binary neutron star (BNS) system in NGC 4993, an elliptical galaxy in the constellation Hydra about 140 million light years away. [8]
Artist's impression of neutron stars merging, producing gravitational waves and resulting in a kilonova Kilonova illustration. A kilonova (also called a macronova) is a transient astronomical event that occurs in a compact binary system when two neutron stars (BNS) or a neutron star and a black hole collide. [1]
Simulated collision of two neutron stars. A stellar collision is the coming together of two stars [1] caused by stellar dynamics within a star cluster, or by the orbital decay of a binary star due to stellar mass loss or gravitational radiation, or by other mechanisms not yet well understood.
For the first time ever, humans have observed light and gravitational waves from a neutron star collision 130 million light years away. For the first time ever, humans have observed light and ...
The origin and properties (masses and spins) of a double neutron star system like GW170817 are the result of a long sequence of complex binary star interactions. [42] The gravitational wave signal indicated that it was produced by the collision of two neutron stars [ 16 ] [ 17 ] [ 19 ] [ 43 ] with a total mass of 2.82 +0.47
NASA has captured what it looks like when two galaxies collide. The image is of Arp 299, about 140 million light years away from Earth, and has been merging for millions of years.
Scientists recently discovered that the merger and collapse of two neutron stars makes an almost perfectly spherical explosion.
The distance between two neutron stars in a close binary system is observed to shrink as gravitational waves are emitted. [80] Ultimately, the neutron stars will come into contact and coalesce. The coalescence of binary neutron stars is one of the leading models for the origin of short gamma-ray bursts.