Stellar Irradiation and Rotation Dynamics of Hot Jupiters

Dec 08, 2025

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This study explores the concept of thermal bulges and their implications on the rotation of hot Jupiter exoplanets. Authors Pin Gao Gu, He-Feng Hsieh, and Gordon I. Ogilvie investigate whether stellar irradiation can influence the departure of these planets from synchronous rotation. The findings shed light on the complex interactions between a hot Jupiter's atmospheric dynamics and its host star's radiation, contributing to our understanding of exoplanetary behavior and migration patterns.

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Stellar Irradiation and Rotation Dynamics of Hot Jupiters

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Concept of Thermal Bulges Pin-Gao Gu (ASIAA) He-Feng Hsieh (National Taiwan Univ.) Gordon I. Ogilvie (Univ. of Cambridge) Q: some hot Jupiters are too large…. (Bodenheimer, Lin, & Mardling; Baraffe et al.; etc.) A: can stellar irradiation drive a hot Jupiter away from synchronous rotation?!