Kuiper Belt Binary Evolution

This is a US news story, published by Phys Org, that relates primarily to KB news.

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primordial solar system

Phys Org

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Ultrawide binary objects in the Kuiper belt may not have come from the earliest solar system, research suggests

Summary

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90% Informative

Kuiper belt is torus-shaped region of solar system containing planetesimals and smaller bodies left over from the formation of the solar system.

Researchers from the University of Oklahoma in the US found that these ultrawide (in separation) binary objects may not have been formed in the primordial solar system as has been thought.

TNO passages would widen as many as 10% of moderately tight binaries into UWBs over the 4 billion year span of the solar system.

But the result doesn't hold for tighter binaries.

As similar KB disks have been seen in other star systems, "If we know more about how ours formed, we can learn a bit more.

about how those others formed and make some guesses about what other planets might be lurking there.

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informal

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