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Demonstrating the Effects of Interplanetary Secular Resonances in Exoplanetary Systems Under the Influence of the Stellar Gravitational Quadrupole Moment
Demonstrating the Effects of Interplanetary Secular Resonances in Exoplanetary Systems Under the Influence of the Stellar Gravitational Quadrupole Moment
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202104823
- ISBN
- 9798290992655
- DDC
- 523
- 서명/저자
- Demonstrating the Effects of Interplanetary Secular Resonances in Exoplanetary Systems Under the Influence of the Stellar Gravitational Quadrupole Moment
- 발행사항
- [Sl] : University of California, Los Angeles, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 197 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-02, Section: B.
- 주기사항
- Advisor: Naoz, Smadar.
- 학위논문주기
- Thesis (Ph.D.)--University of California, Los Angeles, 2025.
- 초록/해제
- 요약The purpose of this thesis is to further describe the effects of secular resonances between planets at low inclinations and eccentricities with a special focus on the interactions between these resonances and stellar oblateness. To accomplish this, I led four projects. The first project evaluated the stabilizing power of general relativity precession against external perturbation on compact multi-planet systems. I extended existing stability criteria that neglected general relativity, evaluated the proportion of the exoplanet sample for which the updated criteria produces qualitatively different conclusions, and investigated the stability of undetected inner planets within coplanar observed multi-planet systems. My second project further explored the stability of undetected inner planets within observed systems by considering the effect of evolving stellar oblateness on potential secular resonances. I find that, consistent with previous theory, evolving stellar oblateness causes secular resonances between planets to move through parameter space, causing a wide range of potential inner planet orbits to experience resonance. These sweeping resonances systematically transfer angular momentum between planets, permanently changing the mutual inclinations between planets.In my third project, I consider the three-planet transiting exoplanet sample at large and investigate how often these sweeping resonances from evolving stellar oblateness occur. Ignoring stellar oblateness, these resonances should be exceptionally rare, requiring almost fine-tuned selections of planetary semimajor axes and masses. However, I demonstrate that the resonance-sweeping vastly increases the regions of parameter space where these resonances may occur. Investigating a clean sample of thirty three-planet systems, I find six (20% of the sample) that have masses and semimajor axes that are susceptible to these resonances if their host stars were born with sufficiently high spins. I argue that this finding of 20%, even if only from a sample of thirty, indicates that such resonances are commonplace among the histories of planetary systems. In my fourth project, I show that sweeping resonances from evolving stellar oblateness resonances have significant impact on the observational outcomes of multi-planet transiting systems as they greatly modify the mutual inclinations between planets. As the outer two planets of three planet systems typically align as a result of these resonances, the probability they are observed transiting together increases. However, the inner planet is misaligned from them as a result, reducing the overall probability that the system is observed as a two- or three-planet transiting system. I discuss the implications these systematic effects on transit probabilities may have on the observed exoplanet sample.This thesis demonstrates that events early in the life of a planetary system, such as the stellar spin-down, have long-lasting effects on systems' architectures, and provides insight into how these early events can systematically shape what planetary systems are most amenable to observation.
- 일반주제명
- Astrophysics
- 일반주제명
- Astronomy
- 일반주제명
- Planetology
- 키워드
- Dynamics
- 키워드
- Exoplanets
- 키워드
- Planetary system
- 기타저자
- University of California, Los Angeles Astronomy and Astrophysics 00EB
- 기본자료저록
- Dissertations Abstracts International. 87-02B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202104823
■006m o d
■007cr#unu||||||||
■020 ▼a9798290992655
■035 ▼a(MiAaPQ)AAI32169560
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a523
■1001 ▼aHendon Faridani, Thea.
■24510▼aDemonstrating the Effects of Interplanetary Secular Resonances in Exoplanetary Systems Under the Influence of the Stellar Gravitational Quadrupole Moment
■260 ▼a[Sl]▼bUniversity of California, Los Angeles▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a197 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-02, Section: B.
■500 ▼aAdvisor: Naoz, Smadar.
■5021 ▼aThesis (Ph.D.)--University of California, Los Angeles, 2025.
■520 ▼aThe purpose of this thesis is to further describe the effects of secular resonances between planets at low inclinations and eccentricities with a special focus on the interactions between these resonances and stellar oblateness. To accomplish this, I led four projects. The first project evaluated the stabilizing power of general relativity precession against external perturbation on compact multi-planet systems. I extended existing stability criteria that neglected general relativity, evaluated the proportion of the exoplanet sample for which the updated criteria produces qualitatively different conclusions, and investigated the stability of undetected inner planets within coplanar observed multi-planet systems. My second project further explored the stability of undetected inner planets within observed systems by considering the effect of evolving stellar oblateness on potential secular resonances. I find that, consistent with previous theory, evolving stellar oblateness causes secular resonances between planets to move through parameter space, causing a wide range of potential inner planet orbits to experience resonance. These sweeping resonances systematically transfer angular momentum between planets, permanently changing the mutual inclinations between planets.In my third project, I consider the three-planet transiting exoplanet sample at large and investigate how often these sweeping resonances from evolving stellar oblateness occur. Ignoring stellar oblateness, these resonances should be exceptionally rare, requiring almost fine-tuned selections of planetary semimajor axes and masses. However, I demonstrate that the resonance-sweeping vastly increases the regions of parameter space where these resonances may occur. Investigating a clean sample of thirty three-planet systems, I find six (20% of the sample) that have masses and semimajor axes that are susceptible to these resonances if their host stars were born with sufficiently high spins. I argue that this finding of 20%, even if only from a sample of thirty, indicates that such resonances are commonplace among the histories of planetary systems. In my fourth project, I show that sweeping resonances from evolving stellar oblateness resonances have significant impact on the observational outcomes of multi-planet transiting systems as they greatly modify the mutual inclinations between planets. As the outer two planets of three planet systems typically align as a result of these resonances, the probability they are observed transiting together increases. However, the inner planet is misaligned from them as a result, reducing the overall probability that the system is observed as a two- or three-planet transiting system. I discuss the implications these systematic effects on transit probabilities may have on the observed exoplanet sample.This thesis demonstrates that events early in the life of a planetary system, such as the stellar spin-down, have long-lasting effects on systems' architectures, and provides insight into how these early events can systematically shape what planetary systems are most amenable to observation.
■590 ▼aSchool code: 0031.
■650 4▼aAstrophysics
■650 4▼aAstronomy
■650 4▼aPlanetology
■653 ▼aDynamics
■653 ▼aExoplanets
■653 ▼aStellar oblateness
■653 ▼aPlanetary system
■690 ▼a0596
■690 ▼a0606
■690 ▼a0590
■71020▼aUniversity of California, Los Angeles▼bAstronomy and Astrophysics 00EB.
■7730 ▼tDissertations Abstracts International▼g87-02B.
■790 ▼a0031
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359026▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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