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Population of the Scattered Kuiper Belt*

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Published 1999 December 30 • © 2000. The American Astronomical Society. All rights reserved. Printed in U.S.A.
, , Citation Chadwick A. Trujillo et al 1999 ApJ 529 L103

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Article information
Author e-mails

chad@ifa.hawaii.edu

jewitt@ifa.hawaii.edu

luu@strw.leidenuniv.nl

Author affiliations

1 Institute for Astronomy, 2680 Woodlawn Drive, Honolulu, HI 96822

2 Leiden Observatory, P.O. Box 9513, 2300 RA Leiden, The Netherlands

Dates

Received 1999 October 27
Accepted 1999 December 6
Published

DOI

https://doi.org/10.1086/312467

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1538-4357/529/2/L103

Abstract

We present the discovery of three new scattered Kuiper Belt objects (SKBOs) from a wide-field survey of the ecliptic. This continuing survey has to date covered 20.2 deg2 to a limiting red magnitude of 23.6. We combine the data from this new survey with an existing survey conducted at the University of Hawaii 2.2 m telescope to constrain the number and mass of the SKBOs. The SKBOs are characterized by large eccentricities, perihelia near 35 AU, and semimajor axes greater than 50 AU. Using a maximum likelihood model, we estimate the total number of SKBOs larger than 100 km in diameter to be N = (3.1) × 104 (1 σ errors) and the total mass of SKBOs to be M ∼ 0.05 M⊕, demonstrating that the SKBOs are similar in number and mass to the Kuiper Belt inside 50 AU.

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Footnotes

  • * 

    Based on observations collected at Canada-France-Hawaii Telescope, which is operated by the National Research Council of Canada, the Centre National de la Recherche Scientifique de France, and the University of Hawaii.

10.1086/312467