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Time-Resolved Near-Infrared Photometry of Extreme Kuiper Belt Object Haumea
Pedro Lacerda
We present time-resolved near-infrared (J and H) photometry of the extreme Kuiper belt object (136108) Haumea (formerly 2003 EL61) taken to further investigate rotational variabili…
The Kuiper Belt and Other Debris Disks
David Jewitt, Amaya Moro-Martín, Pedro Lacerda
We discuss the current knowledge of the Solar system, focusing on bodies in the outer regions, on the information they provide concerning Solar system formation, and on the possibl…
Detection of Contact Binaries Using Sparse High Phase Angle Lightcurves
Pedro Lacerda
We show that candidate contact binary asteroids can be efficiently identified from sparsely sampled photometry taken at phase angles >60deg. At high phase angle, close/contact bina…
Fraction of Contact Binary Trojan Asteroids
Rita K. Mann, David Jewitt, Pedro Lacerda
We present the results of an optical lightcurve survey of 114 Jovian Trojan asteroids conducted to determine the fraction of contact binaries. Sparse-sampling was used to assess th…
Densities of Solar System Objects from their Rotational Lightcurves
Pedro Lacerda, David Jewitt
We present models of the shapes of four Kuiper belt objects (KBOs) and Jovian Trojan (624) Hektor as ellipsoidal figures of equilibrium and Roche binaries. Our simulations select t…
Analysis of the rotational properties of Kuiper belt objects
Pedro Lacerda, Jane Luu
We use optical data on 10 Kuiper Belt objects (KBOs) to investigate their rotational properties. Of the 10, three (30%) exhibit light variations with amplitude delta_m >= 0.15 mag,…