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The Excited Spin State of 1I/2017 U1 'Oumuamua
Michael J. S. Belton, Olivier R. Hainaut, Karen J. Meech et al., 2018. The Astrophysical Journal Letters.
Period analysis of 818 photometric observations over 29.3 days with CLEAN and ANOVA: two fundamental periodicities at 8.67 ± 0.34 h and 3.74 ± 0.11 h, characteristic of an excited spin state. Shows that the body could be a long cigar near its lowest rotational energy or an extremely flattened spheroid near its highest, and that the data cannot tell the two apart. ApJL 856, L21.
What it's used for here
The compiled light curve and the origin of the cigar-versus-disc ambiguity.
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Research copy, for editors and curators. The work is the publisher's, so readers are sent to it. We keep this copy so the citation can be checked if the page changes or goes.
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Belton, M. J. S., Hainaut, O. R., Meech, K. J., Mueller, B. E. A., Kleyna, J. T., Weaver, H. A., Buie, M. W., Drahus, M., Guzik, P., Wainscoat, R. J., Waniak, W., Handzlik, B., Kurowski, S., Xu, S., Sheppard, S. S., Micheli, M., Ebeling, H., & Keane, J. V. (2018). The Excited Spin State of 1I/2017 U1 'Oumuamua. The Astrophysical Journal Letters. https://doi.org/10.3847/2041-8213/aab370
@article{belton2018excited,
author = {Belton, Michael J. S. and Hainaut, Olivier R. and Meech, Karen J. and Mueller, Beatrice E. A. and Kleyna, Jan T. and Weaver, Harold A. and Buie, Marc W. and Drahus, Michal and Guzik, Piotr and Wainscoat, Richard J. and Waniak, Waclaw and Handzlik, Barbara and Kurowski, Sebastian and Xu, Siyi and Sheppard, Scott S. and Micheli, Marco and Ebeling, Harald and Keane, Jacqueline V.},
title = {The Excited Spin State of 1I/2017 U1 'Oumuamua},
journal = {The Astrophysical Journal Letters},
year = {2018},
doi = {10.3847/2041-8213/aab370},
url = {https://doi.org/10.3847/2041-8213/aab370}
}TY - JOUR TI - The Excited Spin State of 1I/2017 U1 'Oumuamua AU - Belton, Michael J. S. AU - Hainaut, Olivier R. AU - Meech, Karen J. AU - Mueller, Beatrice E. A. AU - Kleyna, Jan T. AU - Weaver, Harold A. AU - Buie, Marc W. AU - Drahus, Michal AU - Guzik, Piotr AU - Wainscoat, Richard J. AU - Waniak, Waclaw AU - Handzlik, Barbara AU - Kurowski, Sebastian AU - Xu, Siyi AU - Sheppard, Scott S. AU - Micheli, Marco AU - Ebeling, Harald AU - Keane, Jacqueline V. PY - 2018 JO - The Astrophysical Journal Letters DO - 10.3847/2041-8213/aab370 UR - https://doi.org/10.3847/2041-8213/aab370 ER -
Belton, Michael J. S. et al.. “The Excited Spin State of 1I/2017 U1 'Oumuamua.” The Astrophysical Journal Letters (2018). https://doi.org/10.3847/2041-8213/aab370.