A Search for Satellite around Ceres
A. Bieryla, J. Wm. Parker, E.F. Young, L. A. McFadden, C. T. Russell,, S. A. Stern, M. V. Sykes, B. Gladman
TL;DR
This study used Hubble and Palomar data to search for satellites around Ceres but found none larger than 1-2 km within its stable orbit region.
Contribution
First comprehensive satellite search around Ceres using combined space and ground-based observations with a sensitivity to small satellites.
Findings
No satellites detected within 500 km of Ceres
Detection sensitivity to satellites larger than 1-2 km in diameter
Provides constraints on the presence of small satellites around Ceres
Abstract
We conducted a satellite search around the dwarf planet 1 Ceres using Hubble Space Telescope and ground-based Palomar data. No candidate objects were found orbiting Ceres in its entire stability region down to ~500km from the surface of Ceres. Assuming a satellite would have the same albedo as Ceres, which has a visual geometric albedo of 0.07-0.10, our detection limit is sensitive to satellites larger than 1-2 km in diameter.
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