Science Seminars

The environments of planets around high mass stars

Speaker: Jonathan Ahlers (NASA Goddard Space Flight Center)
Date: Thursday, Feb 24, 2022
Time: 4:00 PM
Location: Zoom

Seminar Abstract:

High-mass stars provide unique and fascinating environments for planets to form and evolve. The internal physics of A-type and F-type stars cause them to behave fundamentally differently than Sun-like and smaller stars, with traits such as rapid rotation, radiative exteriors, and a lack of external magnetic fields that produce dramatically different environments for orbiting planets. With nearly 40% of planets discovered to date orbiting A/F stars, it is more important than ever to understand how these stellar properties can impact planet formation and evolution. In this talk, I will give an overview of how high-mass stars differ from Sun-like stars as exoplanet hosts and discuss their implications for planet orbital evolution, energy balance, and climate.