The Astronomical Journal (Jan 2024)
Age Analysis of Extrasolar Planets: Insight from Stellar Isochrone Models
Abstract
There is growing evidence from stellar kinematics and galactic chemical evolution suggesting that giant planets ( M _P ≥ 0.3 M _J ) are relatively young compared to the most commonly occurring population of small planets ( M _P 10 days), implying that hot Jupiters could be the youngest systems to emerge in the progression of planet formation.
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