Stars stop forming when big galaxies collide

Astronomers studying new images of a nearby galaxy cluster have found evidence that high-speed collisions between large elliptical galaxies may prevent new stars from forming, according to a paper to be published in a November 2008 issue of The Astrophysical Journal Letters.

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<p><a href="http://www.physorg.com/news142595942.html">Stars stop forming when big galaxies collide</a></p> <p>Astronomers studying new images of a nearby galaxy cluster have found evidence that high-speed collisions between large elliptical galaxies may prevent new stars from forming, according to a paper to be published in a November 2008 issue of The <I>Astrophysical Journal Letters</I>.</p>