Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...189.2504h&link_type=abstract
American Astronomical Society, 189th AAS Meeting, late abstracts, #25.04; Bulletin of the American Astronomical, Vol. 29, p. 728
Astronomy and Astrophysics
Astronomy
Scientific paper
A remnant belt of material between Uranus and Neptune, analogous to and as massive as the asteroid belt between Mars and Jupiter, is suggested as a potential reservoir of Centaurs and short-period comets. About 0.5% of small bodies in low eccentricity, low inclination orbits in the region 24-26 AU survive for the age of solar system. Given this, the current mass of the belt is estimated to be 2*E(-4) M_oplus - 9x 10(-4) M_oplus . The number of Centaur-sized bodies in such a belt could be an order of magnitude larger than the steady-state population of Centaurs scattered from the Kuiper belt. Furthermore, such a belt would add a significant fraction to the flux of Centaurs and short-period comets from the Kuiper belt. The 24-26 AU belt would have been undetected in earlier observational surveys, just as the Kuiper belt was undetected until 1992; however, this belt can be confirmed in new observational searches. Its presence or absence would provide strong constraints on models of planet formation in the outer solar system.
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