On the formation history of nearby Sun-like stars (and their planetary systems)

Nearby Sun-like stars are prime targets for the detection and characterization of exoplanets and possibly exo-earths. Understanding their formation history and determining the age of these stars (and their planetary systems) is thus essential. The present study address es the formation history of solar-type stars using the emission reversal in the core of their CaII H and K Fraunhofer lines as an age indicator.