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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.
KIC 9832227 is a contact binary star system in the constellation Cygnus, ... "Spectacular collision of suns will create new star in night sky in 2022".
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]
The newly-discovered binary star system, which is home to two stars gravitationally bound to one another, was found in a dense stellar cluster orbiting Sagittarius A*, which has an estimated mass ...
An eclipsing binary star is a binary star system in which the orbital plane of the two stars lies so nearly in the line of sight of the observer that the components undergo mutual eclipses. [20] In the case where the binary is also a spectroscopic binary and the parallax of the system is known, the binary is quite valuable for stellar analysis.
The most common kinds of binary system are binary stars and binary asteroids, but brown dwarfs, planets, neutron stars, black holes and galaxies can also form binaries. A multiple system is similar but consists of three or more objects, for example triple stars and triple asteroids (a more common term than 'trinary').
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 −0.09 solar masses (M ...
This collision can leave behind a close binary system of two white dwarfs. Their orbit decays and they merge through their shared envelope. [ 27 ] A study based on SDSS spectra found 15 double systems of the 4,000 white dwarfs tested, implying a double white dwarf merger every 100 years in the Milky Way: this rate matches the number of Type Ia ...