Making hot Jupiters in stellar clusters: The importance of binary exchange
It has been suggested that the occurrence rate of hot Jupiters (HJs) in open clusters might reach several per cent, significantly higher than that of the field (~a per cent). In a stellar cluster, when a planetary system scatters with a stellar binary, it may acquire a companion star, which may excite large-amplitude von Zeipel-Lidov-Kozai oscillations in the planet's orbital eccentricity, trigger