Exoplanet Magnetic Fields Through Comparative Heliophysics

Authors: Anthony Atkinson (Rice University), David Alexander (Rice University)

Observations of magnetic fields in extrasolar environments are critical to the current theories of planetary formation, migration, and habitability. For example, detections of auroral radio emission indicate the presence of planetary magnetic fields. Measurements of the strength of these fields have implications for important parameters such as the number, eccentricity, orbital radius, inclination, and mass of planets. Using the Solar System as a prime laboratory for studying star-planet interactions (SPI) up close, we aim to understand the magnetic environments of extrasolar planets orbiting host stars with similar flux-emergence behaviors. We use empirical modeling of stellar flux transport using a solar-based dynamo to better understand the interplanetary magnetic environment.