Chemical Tagging of FGK Stars: Testing Membership to Young Stellar Kinematics Groups

TL;DR

This study explores chemical tagging as a method to determine membership of FGK stars in young stellar kinematic groups, offering an alternative to traditional kinematic and photometric techniques.

Contribution

It demonstrates the application of chemical tagging to identify stellar group memberships, providing new insights into star formation history and group composition.

Findings

Chemical tagging can effectively constrain group membership.

Preliminary results for Castor group show promising membership identification.

Method complements existing kinematic and age-based techniques.

Abstract

In this contribution talk we summarize the results of our ongoing project of detailed analysis of the chemical content (chemical tagging) as a promising powerful method to provide clear constraints on the membership of FGK kinematic candidates to stellar kinematic groups of different ages that can be used as an alternative or complementary to the methods that use kinematics, photometry or age indicators. This membership information is very important to better understand the star formation history in the solar neighborhood discerning between field-like stars (associated with dynamical resonances (bar) or spiral structure) and real physical structures of coeval stars with a common origin (debris of star-forming aggregates in the disk). We have already applied the chemical tagging method to constrain the membership of FGK candidate stars to the Hyades supercluster and the Ursa Major moving group and in this contribution we present the preliminary results of our study of the Castor moving group.