Constraining the Flatness of Planetary Systems

Simple item page
dc.catalogadorpva
dc.contributor.advisorAguilera Gómez, Claudia
dc.contributor.authorEspinoza Retamal, Juan Ignacio
dc.contributor.otherPontificia Universidad Católica de Chile. Instituto de Astrofísica
dc.date.accessioned2025-08-01T20:01:32Z
dc.date.available2025-08-01T20:01:32Z
dc.date.issued2025
dc.date.updated2025-07-31T22:23:49Z
dc.descriptionTesis (Doctor of Philosophy in Astrophysics)--Pontificia Universidad Católica de Chile, 2025
dc.description.abstractOver the past 30 years, nearly 6,000 exoplanets have been discovered, revealing a remarkable diversity of planetary systems. Essential information about the formation of these systems can be found in their current architectures, as they serve as a signature of their dynamical evolution. Much of what we currently know about architectures comes from the study of stellar obliquities--the angle between the stellar spin axis and the planet's orbital normal--in hot Jupiter systems. However, hot Jupiters are intrinsically rare, with an occurrence rate of 1%, highlighting the need to explore architectures in a broader range of planetary systems. In this thesis, I study the architectures of planetary systems beyond hot Jupiters, focusing on warm Jupiter and Neptune systems through stellar obliquity measurements. Using VLT/ESPRESSO observations of the Rossiter-McLaughlin effect, I have found that these different exoplanet populations have different obliquity distributions: i) hot Jupiters show a two-component distribution, with one population of aligned systems and another approximately isotropic population of misaligned systems; ii) independent of their eccentricities, warm Jupiters are typically well aligned; iii) Neptunes appear to have a bimodal distribution of well-aligned and polar systems. These contrasting obliquity distributions suggest distinct formation pathways for each population. Finally, I also discuss prospects and make predictions for measuring mutual inclinations--the angle between different orbital planes of different planets in the same system--using future Gaia astrometric data. I show that these measurements have the potential to provide deeper insights into the formation and evolution of a larger and more diverse sample of planetary systems.
dc.description.funderANID
dc.fechaingreso.objetodigital2025-07-31
dc.format.extent164 páginas
dc.fuente.origenAutoarchivo
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/105101
dc.information.autorucInstituto de Astrofísica; Aguilera Gómez, Claudia; 0000-0002-9052-382X; 177487
dc.information.autorucInstituto de Astrofísica; Espinoza Retamal, Juan Ignacio; S/I; 1025598
dc.language.isoen
dc.nota.accesocontenido completo
dc.rightsacceso abierto
dc.rights.licenseAtribución-NoComercial 4.0 Internacional (CC BY-NC 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/deed.es
dc.subject.ddc520
dc.subject.deweyAstronomíaes_ES
dc.titleConstraining the Flatness of Planetary Systems
dc.typetesis doctoral
sipa.codpersvinculados177487
sipa.codpersvinculados1025598
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
JIER_thesis.pdf
Size:
27.78 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.98 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
AST Tesis doctorado