Densities of Solar System Objects from Their Rotational Light Curves

  title={Densities of Solar System Objects from Their Rotational Light Curves},
  author={Pedro Lacerda and David C. Jewitt},
  journal={The Astronomical Journal},
  pages={1393 - 1408}
We present models of the shapes of four Kuiper Belt objects (KBOs) and the Jovian Trojan asteroid (624) Hektor as ellipsoidal figures of equilibrium and Roche binaries. Our simulations select those figures of equilibrium whose light curves best match the measured rotational data. The best-fit shapes, combined with the knowledge of the spin period of the objects, provide estimates of the bulk densities of these objects. We find that the light curves of KBOs (20000) Varuna and 2003 EL61 are well… 

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