Time evolution of the Vesta Family with and without the Yarkovsky effect

Ireneusz Wlodarczyk and Jacek Leliwa-Kopystynski

We selected 21103 Vesta Family Members (VFMs) from 371698 numbered and 95836 multi-opposition asteroids with their proper elements using the Hierarchical Clustering Method. Next we studied time evolution of the orbits of all asteroids classified as the VFMs up to 100 My forward from now with and without the Yarkovsky effect. It has been found that the mean drift rate of major semiaxis da/dt of all VFMs is close to 0.01×10^-4 au My^-1 for the case without YE and it is equal to -0.10×10^-4 au My^-1 for the case with YE.

Proceedings of the Polish Astronomical Society, vol. 3, 289-291 (2016)

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