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Second Asteroid Belt Between Uranus & Neptune?
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- Subject: Second Asteroid Belt Between Uranus & Neptune?
- From: Ron Baalke <BAALKE@kelvin.jpl.nasa.gov>
- Date: Wed, 2 Jul 1997 14:41:46 GMT
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PHYSICS NEWS UPDATE
The American Institute of Physics Bulletin of Physics News
Number 327 June 25, 1997 by Phillip F. Schewe and Ben Stein
[snip]
A SECOND ASTEROID BELT, possibly as big as the one between
Mars and Jupiter, might exist between the orbits of Uranus and
Neptune. Matthew Holman's (University of Toronto) computer
simulation places collections of test particles in various graviational
niches throughout the solar system and then tracks the particles over
billions of years. Many of these pretend asteroids are captured by
planets or ejected from the solar system. Holman finds that the
region between 24 and 27 astronomical units undergoes major
asteroid attrition but could harbor a large enough population of
survivors to make an observational search worthwhile. (Nature, 19
June 1997.)