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Paper: |
Planetary Origins and Dynamical Evolution |
Volume: |
294, Scientific Frontiers in Research on Extrasolar Planets |
Page: |
165 |
Authors: |
Murray, N. |
Abstract: |
The 100 or so currently known extrasolar planetary systems provide us with a number of clues as to the origin and dynamical evolution of planetary systems. For example, the prevalence of short orbital periods suggests that planets migrate inward. Similarly, the large number of high eccentricity systems suggest either that planet-disk interactions pump planetary eccentricity, or that there are strong interactions among planets; I argue that neither type of interaction gives a natural explanation for all known systems. Finally, I discuss the accretion history of solar type stars, and point out suggestive features of the currently known multiple planet systems. |
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