Planetary and exoplanetary Astronomy Lunch Seminar (PALS) for 2023-02-20

Series: Planetary and exoplanetary Astronomy Lunch Seminar (PALS)
Date: Monday 20-February-2023
Time: 11:15-12:15
Location: ATL 1250
Speaker: Ben Hord
Title: Where Did They Come From, Where Will They Go: The Life and Death of Hot Jupiters

Abstract: Hot Jupiters are one of the biggest surprises of exoplanet science. The birth and evolution of such planets are unlike anything in the Solar System and they have challenged traditional theories of planet formation. A clue to unraveling this formation history comes from the fact that the vast majority of hot Jupiters lack nearby companion planets. By studying the handful of cases in which hot Juipters do possess nearby planets, we can distinguish between the possible mechanisms that form hot Jupiters. I will discuss my discovery of a new hot Jupiter companion planet – WASP-132 c – as well as emerging trends in the handful of hot Jupiter systems with this rare architecture. Furthermore, the death of hot Jupiters is poorly understood. Every hot Jupiter is doomed to inspiral into its host star, and I will present current and future work on directly observing this phenomenon to constrain hot Jupiter lifetimes. In this manner, I hope to provide further understanding on the two bookends of a hot Jupiter’s life.

For further information contact PALS coordinators Quanzhi Ye at and Tad Komacek at


Special accommodations for individuals with disabilities can be made by calling (301) 405-3001. It would be appreciated if we are notified at least one week in advance.


Directions and information about parking can be found here.

This page was automatically generated on: 14-Feb-2023.