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The escape of natural satellites from Mercury and Venus
Authors:Shiv S Kumar
Institution:(1) Dept. of Astronomy, University of Virginia, Charlottesville, VA., USA
Abstract:It is suggested that the slow rotations of Mercury and Venus may be connected with the absence of natural satellites around them. If Mercury or Venus possessed a satellite at the time of formation, the tidal evolution would have caused the satellite to recede. At a sufficiently large distance from the planet, the Sun's gravitational influence makes the satellite orbit unstable. The natural satellites of Mercury and Venus might have escaped as a consequence of this instability.
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