«Assuming random orientation of the asteroid’s angular momentum vector, we computed the probability that our best-fitting models can produce light curve minima as deep as the observed ones. This analysis demonstrated that the disc shape (probability 91 per cent) is much more likely than the cigar shape (probability 16 per cent)». https://arxiv.org/pdf/1906.03696.pdf
We have shown that the observed non-gravitational acceleration of ‘Oumuamua may be explained by solar radiation pressure. This requires a small mass-to-area ratio for ‘Oumuamua of (m/A)≈0.1 g cm¯². For a planar geometry and typical mass densities of 1–3 g cm¯² this gives an effective thickness of only 0.9–0.3 mm, respectively.Could Solar Radiation Pressure Explain 'Oumuamua's Peculiar Acceleration?
(EN) Alan Fitzsimmons et al., Spectroscopy and thermal modelling of the first interstellar object 1I/2017 U1 ‘Oumuamua (abstract), in Nature, 18 dicembre 2017, DOI:10.1038/s41550-017-0361-4.
(EN) Alan P Jackson et al., Ejection of rocky and icy material from binary star systems: Implications for the origin and composition of 1I/‘Oumuamua (abstract), in Monthly Notices of the Royal Astronomical Society, 19 marzo 2018, DOI:10.1093/mnrasl/sly033.
(DE) Startseite, su Max-Planck-Institut für Kernphysik, 2 gennaio 2024. URL consultato l'8 gennaio 2024.
nasa.gov
ssd.jpl.nasa.gov
(EN) Yeomans, D.K., 1 (A/2017 U1), su Small-Body Database, Jet Propulsion Laboratory (JPL). URL consultato il 29 ottobre 2017.
Le effemeridi attuali possono essere scaricate direttamente dal sito Horizons della NASA (EN) 1I/'Oumuamua (A/2017 U1), su ssd.jpl.nasa.gov. URL consultato il 15 novembre 2018.
(EN) Alan Fitzsimmons et al., Spectroscopy and thermal modelling of the first interstellar object 1I/2017 U1 ‘Oumuamua (abstract), in Nature, 18 dicembre 2017, DOI:10.1038/s41550-017-0361-4.
(EN) Alan P Jackson et al., Ejection of rocky and icy material from binary star systems: Implications for the origin and composition of 1I/‘Oumuamua (abstract), in Monthly Notices of the Royal Astronomical Society, 19 marzo 2018, DOI:10.1093/mnrasl/sly033.
