Authors

J. M. Bauer; T. Grav; E. Blauvelt; A. K. Mainzer; J. R. Masiero; R. Stevenson; E. Kramer; Y. R. Fernandez; C. M. Lisse; R. M. Cutri; P. R. Weissman; J. W. Dailey; F. J. Masci; R. Walker; A. Waszczak; C. R. Nugent; K. J. Meech; A. Lucas; G. Pearman; A. Wilkins; J. Watkins; S. Kulkarni; E. L. Wright; Wise Team;P. T. F. Team

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Abbreviated Journal Title

Astrophys. J.

Keywords

comets: general; minor planets, asteroids: general; OUTER SOLAR-SYSTEM; JUPITER-FAMILY COMETS; KUIPER-BELT OBJECTS; MODEL; CALIBRATION; SURVEY-EXPLORER; DUST COMA; MAIN BELT; POPULATION; ASTEROIDS; PLANETS; Astronomy & Astrophysics

Abstract

The Wide-field Infrared Survey Explorer (WISE) observed 52 Centaurs and scattered disk objects (SDOs) in the thermal infrared, including 15 new discoveries. We present analyses of these observations to estimate sizes and mean optical albedos. We find mean albedos of 0.08 +/- 0.04 for the entire data set. Thermal fits yield average beaming parameters of 0.9 +/- 0.2 that are similar for both SDO and Centaur sub-classes. Biased cumulative size distributions yield size-frequency distribution power law indices of similar to-1.7 +/- 0.3. The data also reveal a relation between albedo and color at the 3 sigma level. No significant relation between diameter and albedos is found.

Journal Title

Astrophysical Journal

Volume

773

Issue/Number

1

Publication Date

1-1-2013

Document Type

Article

Language

English

First Page

11

WOS Identifier

WOS:000322531900022

ISSN

0004-637X

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