PIRSA:18100083

Video URL

https://pirsa.org/18100083

A Song of Ice and Fire --- Dynamics of Planets Hot and Cold

Li, G. (2018). A Song of Ice and Fire --- Dynamics of Planets Hot and Cold . Perimeter Institute for Theoretical Physics. https://pirsa.org/18100083

Li, Gongjie. A Song of Ice and Fire --- Dynamics of Planets Hot and Cold . Perimeter Institute for Theoretical Physics, Oct. 18, 2018, https://pirsa.org/18100083 

          @misc{ scivideos_PIRSA:18100083,
            doi = {10.48660/18100083},
            url = {https://pirsa.org/18100083},
            author = {Li, Gongjie},
            keywords = {Strong Gravity},
            language = {en},
            title = {A Song of Ice and Fire --- Dynamics of Planets Hot and Cold },
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2018},
            month = {oct},
            note = {PIRSA:18100083 see, \url{https://scivideos.org/pirsa/18100083}}
          }

Gongjie Li Georgia Institute of Technology

Talk numberPIRSA:18100083
DOI10.48660/18100083
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

The unexpected diversity of planetary systems has posed challenges to our classical understanding of planetary formation. For instance, Jupiter sized planets have been detected with short orbital periods of a few days in misaligned orbits with respect to the spin-axis of their host stars. I will first describe the statistical implication of detecting misaligned hot Jupiters and will suggest how dynamical interactions between an outer perturber and the inner planet, can naturally lead to the formation of such misaligned hot Jupiters. Next, I will discuss a similar dynamical process in the outer Solar System, far away from our Sun, which could cause the observed clustering of extreme trans-Neptunian objects. This can constrain properties of a possible outer planet, Planet Nine, in our own Solar System.