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February 24 2017: The Rotation Period of Hi’iaka, Haumea’s Largest Satellite & Rotationally Disrupting Bodies

Posted on Jan 12, 2017 in Seminars

Danielle Hastings (UCLA) & David Jewitt (UCLA)

Danielle Hastings (UCLA): Using relative photometry from the Hubble Space Telescope and Magellan, we have found that Hi’iaka, the largest satellite of the dwarf planet Haumea, has a rotation period of ~9.8 hours.  This surprisingly short period, ~120 times faster than its orbital period, creates new questions about the formation of the Haumea system and possible tidal evolution.

David Jewitt (UCLA): I will present observations suggesting the role of rotational disruption in the solar system.