Unraveling the Planet-Metallicity Connection in Intermediate-Mass Stars

The study investigates the planet-metallicity correlation in intermediate-mass stars at different evolutionary stages. It finds that pre-main sequence stars with planets have lower metallicities, while main sequence stars show a weak correlation, and red giants exhibit a strong planet-metallicity trend. The findings suggest that stellar structure and evolution impact how metallicity is observed, supporting the core accretion model of planet formation.