Modelling the light curve of `Oumuamua: evidence for torque and disc-like shape

  title={Modelling the light curve of `Oumuamua: evidence for torque and disc-like shape},
  author={S. Mashchenko},
  journal={Monthly Notices of the Royal Astronomical Society},
  • S. Mashchenko
  • Published 2019
  • Physics
  • Monthly Notices of the Royal Astronomical Society
  • We present the first attempt to fit the light curve of the interstellar visitor `Oumuamua using a physical model which includes optional torque. We consider both conventional (Lommel-Seeliger triaxial ellipsoid) and alternative ("black-and-white ball", "solar sail") brightness models. With all the brightness models, some torque is required to explain the timings of the most conspicuous features -- deep minima -- of the asteroid's light curve. Our best-fitting models are a thin disc (aspect… CONTINUE READING

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