The Excited Spin State of 1I/2017 U1 ‘Oumuamua

@article{Belton2018TheES,
  title={The Excited Spin State of 1I/2017 U1 ‘Oumuamua},
  author={M. Belton and O. Hainaut and K. Meech and B. Mueller and J. Kleyna and H. Weaver and M. Buie and M. Drahus and P. Guzik and R. Wainscoat and W. Waniak and B. Handzlik and S. Kurowski and S. Xu and S. Sheppard and M. Micheli and H. Ebeling and J. Keane},
  journal={The Astrophysical Journal},
  year={2018},
  volume={856}
}
  • M. Belton, O. Hainaut, +15 authors J. Keane
  • Published 2018
  • Physics
  • The Astrophysical Journal
  • We show that `Oumuamua's excited spin could be in a high energy LAM state, which implies that its shape could be far from the highly elongated shape found in previous studies. CLEAN and ANOVA algorithms are used to analyze `Oumuamua's lightcurve using 818 observations over 29.3~days. Two fundamental periodicities are found at frequencies (2.77$\pm$0.11) and (6.42$\pm$0.18)~cycles/day, corresponding to (8.67$\pm$0.34)~h and (3.74$\pm$0.11)~h, respectively. The phased data show that the… CONTINUE READING
    27 Citations

    Figures and Tables from this paper.

    Evidence that 1I/2017 U1 ('Oumuamua) was Composed of Molecular Hydrogen Ice
    • 7
    • Highly Influenced
    • PDF
    The Natural History of 'Oumuamua
    • 7
    • PDF
    Non-gravitational acceleration in the trajectory of 1I/2017 U1 (‘Oumuamua)
    • 69
    • PDF
    Spitzer Observations of Interstellar Object 1I/‘Oumuamua
    • 29
    • PDF
    Spin Evolution and Cometary Interpretation of the Interstellar Minor Object 1I/2017 ’Oumuamua
    • 16
    • Highly Influenced
    • PDF
    Shape model and spin state of non-principal axis rotator (5247) Krylov
    Could Solar Radiation Pressure Explain ‘Oumuamua’s Peculiar Acceleration?
    • 38
    • Highly Influenced
    • PDF

    References

    SHOWING 1-8 OF 8 REFERENCES
    The tumbling rotational state of 1I/‘Oumuamua
    • 24
    • PDF
    Tumbling motion of 1I/'Oumuamua reveals body's violent past
    • 10
    • PDF
    The Pan-STARRS1 Surveys
    • 745
    • PDF
    Origin of Interstellar Object A/2017 U1 in a Nearby Young Stellar Association?
    • 26
    • PDF
    Pan-STARRS Photometric and Astrometric Calibration
    • 99
    • PDF