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A hypothesis by Edgeworth (in 1940s) and Kuiper (in 1950s) on the existing of small objects residing region beyond the orbit of Neptune has been proven by the 1992 discovery of object 1992 QB1. By the end of January 2017 more than <br /> <br /> 2300 objects have been discovered in this r...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/31746 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | A hypothesis by Edgeworth (in 1940s) and Kuiper (in 1950s) on the existing of small objects residing region beyond the orbit of Neptune has been proven by the 1992 discovery of object 1992 QB1. By the end of January 2017 more than <br />
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2300 objects have been discovered in this region, and they are known as Trans Neptunian Objects (TNOs). In general, there are four classes of TNOs, i.e. Classical, Resonant, Scattered-disk, and Detached. Some works have found that there is an orbital relation between TNOs and Centaurs groups (objects orbiting the Sun between Jupiter and Neptune). Orbital evolutions of both groups provide the dynamics of outer solar system. <br />
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This Final Project describes results of numerical studies on orbital evolution of TNOs and Centaurs for one million year, using the SWIFT program package. Orbital parameters of TNOs and Centaurs were taken from the JPL Small Body Database (https://ssd.jpl.nasa.gov/sbdb query.cgix) <br />
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by selecting only objects having better known orbital parameters. Some orbital phenomena are found along one million year integration, i.e. jumping resonance, orbital interaction between Scattered-disk and Centaurs groups, Kozai resonance, Trojan type 1:1 mean-motion resonance (coorbital), unimodal distribution of inclination of Classical Objects, and discard objects that ejected out to outer solar system. These phenomena reveal the orbital <br />
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dynamics of TNOs and Centaurs in which some of them are chaotic, such as orbital interaction between Scattered-disk/Centaurs Objects and some part of discard objects are ejected out after passing through retrograde orbits. On the <br />
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other hand, jumping resonance and Kozai resonance phenomena play a role of resisting the chaotic dynamics because for some time the objects stay in roughly stable orbits. |
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