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Emergent Properties in Exoplanetary Systems
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| 자료유형 | 학위논문 |
|---|---|
| 서명/저자사항 | Emergent Properties in Exoplanetary Systems. |
| 개인저자 | Becker, Juliette. |
| 단체저자명 | University of Michigan. Astronomy and Astrophysics. |
| 발행사항 | [S.l.]: University of Michigan., 2019. |
| 발행사항 | Ann Arbor: ProQuest Dissertations & Theses, 2019. |
| 형태사항 | 435 p. |
| 기본자료 저록 | Dissertations Abstracts International 81-02B. Dissertation Abstract International |
| ISBN | 9781085669276 |
| 학위논문주기 | Thesis (Ph.D.)--University of Michigan, 2019. |
| 일반주기 |
Source: Dissertations Abstracts International, Volume: 81-02, Section: B.
Advisor: Adams, Fred C. |
| 이용제한사항 | This item must not be sold to any third party vendors.This item must not be added to any third party search indexes. |
| 요약 | As the number of known exoplanets approaches four thousand, the fundamental tactic of the field must shift from reductionist analyses of individual planets to systems-level coherent analyses of entire planetary systems. The major contribution of this thesis is to make explicit the study of emergent properties in exoplanetary systems, and the ways that emergent properties can be forward-modeled and reverse-engineered to better understand the unseen components in exoplanetary systems. In both cases, the (known) relationship between the independent properties of the constituent parts of the system and the resultant emergent properties is leveraged to provide a better understanding of the system as a whole and constrain unknown properties for future analysis.The specific contributions of this thesis are as follows. First, in Chapter III, I present the forward modeling of system stability from the measured properties of multi-planet systems discovered by Kepler. In Chapter III, I constrain the presence of additional unseen companions in these same systems by utilizing the observed emergent properties of each system. In Chapter IV, I present the discovery of two additional planets in the WASP-47 system, constrain their masses using two independent methods (transit timing variations and radial velocities) and then utilize dynamical models to measure the unseen properties of the system. In Chapter V, I make population-level inferences about non-transiting companions to hot Jupiters orbiting cool stars using the dynamics of the emergent interactions in the systems. In Chapter VI, I present the discovery of five planets in the HIP 41378 system, three of which have ambiguous orbital periods, and utilize a combination of supplementary observations and dynamics to constrain the orbital periods, creating a road-map for future similar analysis in K2/TESS systems. In Chapter VII, I present the discovery of four validated planets and two additional candidates in the K2-266 system, which exhibit an unusual geometry, and propose a novel mechanism for creating system geometries of these types. In Chapter VIII, I use numerical simulations to explore how emergent properties of Kuiper Belt Objects in our own solar system may be reproduced in the presence of Planet Nine, a proposed new member of the solar system. In Chapter IX, I present the discovery of a new Kuiper Belt Object, the first of a new class of high-inclination, long-orbital-period objects, whose current-day inclination cannot be explained in our existing picture of the solar system. The final goal of the work in this thesis is to enable a better understanding of the census of exoplanets in the galaxy. In Chapter X, I both describe the impacts so far of the work described in this thesis and summarize avenues of future work. |
| 일반주제명 | Astrophysics. Astronomy. |
| 언어 | 영어 |
| 바로가기 | 
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