Dead Star's Cannibalism tagged posts

Dead Star’s Cannibalism of its Planetary System is most far-reaching ever witnessed

Artist’s illustration shows a white dwarf star siphoning off debris from shattered objects in a planetary system. NASA, ESA, Joseph Olmsted (STScI)

White dwarf sheds light on the systemic chaos that occurs when a star dies. The violent death throes of a nearby star so thoroughly disrupted its planetary system that the dead star left behind — known as a white dwarf — is sucking in debris from both the system’s inner and outer reaches, UCLA astronomers and colleagues report today.

This is the first case of cosmic cannibalism in which astronomers have observed a white dwarf consuming both rocky-metallic material, likely from a nearby asteroid, and icy material, presumed to be from a body similar to those found in the Kuiper belt at the fringe of our own solar system.

“We have neve...

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