Abstract
If we assume that the periodic brightness variations ina Kuiper Belt lightcurve are determined only by theiraspherical shapes and the observing geomtry, the fractionof detectable Kuiper Belt lightcurves and the lightcurveamplitude distribution can be used to constrain the shapesof Kuiper Belt objects. The results indicate that most KuiperBelt objects (∼85%) have shapes that are close to spherical(a/b ≤ 1.5$), but there is a small but significant fraction(∼12%) possessing highly aspherical shapes (a/b ≥ 1.7).The distribution cannot be well fitted by a gaussian and is betterapproximated by a power law.
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Luu, J., Lacerda, P. The Shape Distribution Of Kuiper Belt Objects. Earth, Moon, and Planets 92, 221–232 (2003). https://doi.org/10.1023/B:MOON.0000031942.35907.c6
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DOI: https://doi.org/10.1023/B:MOON.0000031942.35907.c6