Non-gravitational acceleration in the trajectory of 1I/2017 U1 (‘Oumuamua)

  title={Non-gravitational acceleration in the trajectory of 1I/2017 U1 (‘Oumuamua)},
  author={Marco Micheli and Davide Farnocchia and Karen J. Meech and Marc W. Buie and Olivier R. Hainaut and Dina Prialnik and Norbert Sch{\"o}rghofer and H. Weaver and Paul W. Chodas and Jan T. Kleyna and Robert J. Weryk and Richard J. Wainscoat and Harald Ebeling and Jacqueline V. Keane and K. C. Chambers and Detlef Koschny and Anastassios E. Petropoulos},
Abstract‘Oumuamua (1I/2017 U1) is the first known object of interstellar origin to have entered the Solar System on an unbound and hyperbolic trajectory with respect to the Sun1. Various physical observations collected during its visit to the Solar System showed that it has an unusually elongated shape and a tumbling rotation state1–4 and that the physical properties of its surface resemble those of cometary nuclei5,6, even though it showed no evidence of cometary activity1,5,7. The motion of… 

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