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De-biased Populations of Kuiper Belt Objects from the Deep Ecliptic Survey

Authors :
James L. Elliot
Amanda A. S. Gulbis
L. H. Wasserman
David E. Trilling
Marc W. Buie
Elisabeth R. Adams
Susan D. Benecchi
Publication Year :
2013

Abstract

The Deep Ecliptic Survey (DES) discovered hundreds of Kuiper Belt objects from 1998-2005. Follow-up observations yielded 304 objects with good dynamical classifications (Classical, Scattered, Centaur, or 16 mean-motion resonances with Neptune). The DES search fields are well documented, enabling us to calculate the probability of detecting objects with particular orbital parameters and absolute magnitudes at a randomized point in each orbit. Grouping objects together by dynamical class leads, we estimate the orbital element distributions (a, e, i) for the largest three classes (Classical, 3:2, and Scattered) using maximum likelihood. Using H-magnitude as a proxy for the object size, we fit a power law to the number of objects for 8 classes with at least 5 detected members (246 objects). The best Classical slope is alpha=1.02+/-0.01 (observed from 5<br />Comment: 26 pages emulateapj, 6 figures, 5 tables, accepted by AJ

Details

Language :
English
Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....7aeeb8d7e3dbc9736ee564a741f6a030