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Yarkovsky and YORP Effects in Dynamics of Small Bodies of the Solar System
 Žižka, Jindřich ; Vokrouhlický, David (advisor) ; Čapek, David (referee) ; Neslušan, Luboš (referee)
In this thesis, we study the influence of non-gravitational perturbations induced by the Yarkovsky/YORP effect and solar radiation pressure (SRP) on the orbital evolution of selected asteroids, asteroid families and pairs. These perturbations are of great importance if one wants to perform precise and long-term propagation of meter-sized and kilometer-sized bodies. Although they have found many applications in the Solar System, here, we particularly investigated how they influence the orbit of near-Earth asteroid (99942) Apophis and what is their role in the age determination of asteroid families and pairs. Our numerical simulations showed that the perturbations of Apophis' orbit caused by the SRP are orders of magnitude smaller than those produced by the Yarkovsky effect. The age determination of asteroid families and pairs was another pillar of this work. Over the past decade it turned out that the Yarkovsky effect must be taken into account for backward propagation of pair/family members. We modified the current method for estimating the age of asteroid pairs to be suitable for weakly convergent cases and discovered 7 young pairs with similar-sized components, which is in contradiction with the current theory of pair formation. In addition, we focused on an interesting pair of asteroids -...
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See also: similar author names
13 ŽIŽKA, Jan
6 ŽIŽKA, Jiří
5 Žižka, Jakub
13 Žižka, Jan
6 Žižka, Jiří
10 Žižka, Josef
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