Identification of Asteroids in Two-Body Resonances |
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Authors: | E A Smirnov I S Dovgalev |
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Institution: | 1.Pulkovo Observatory,Russian Academy of Sciences,St. Petersburg,Russia;2.4xxi Ltd.,St. Petersburg,Russia |
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Abstract: | A catalog of asteroids in two-body orbital resonances with the planets of the Solar System has been created. The AstDyS database was a source of the input data, and all the numbered objects (467303 objects at the time of the analysis) were considered. The orbits were integrated in the framework of a pure gravitational problem considering all the planets of the Solar System and Pluto. From the analysis of the behavior of the resonant argument and the semimajor axis on the 100-kyr interval, the resonance membership and the libration type (pure or transient) were verified for each of the asteroids. A more accurate method to identify the resonant argument librations was developed on the basis of the analysis of mutual periodograms. We found 23251 resonant asteroids, ~36% of which (8397 objects) are in pure resonances. |
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