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Stellar collision
A stellar collision is the coming together of two stars, which through the force of gravity merge into one larger unit. Astronomers predict that events of this type occur in the globular clusters of our galaxy about once every 10,000 years.〔Chang, Kenneth.("Two Stars Collide; A New Star is Born." ), ''New York Times'',New York, 13 June 2000.Retrieved on 14 November 2010.〕 Scientists have only recently been able to observe a stellar merger.
A series of stellar collisions in a dense cluster over a short period of time can lead to an intermediate-mass black hole via "runaway stellar collisions".〔
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==Astronomical bodies involved==
Any star in the universe can be involved in a stellar collision; whether it is 'alive' (meaning fusion is still active in the star) or dead (with fusion no longer taking place). Examples include white dwarf stars, neutron stars, black holes, main sequence stars, giant stars, and supergiants. Differences in star types, masses, temperatures, and radii will result in different types of collisions or mergers.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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