A search for new members of the beta Pic, Tuc-Hor and epsilon Cha moving groups in the RAVE database

TL;DR

This study utilizes the RAVE survey combined with stellar diagnostics and high-resolution spectroscopy to identify new members of nearby young moving groups, enhancing understanding of their composition and distribution.

Contribution

It introduces a method combining RAVE data with diagnostics and spectroscopy to discover new members of young moving groups.

Findings

Identified 1 new beta Pictoris group member and 5 likely members.

Found 1 likely epsilon Cha group member.

Discovered 2 stars in the Tuc-Hor association.

Abstract

We report on the discovery of new members of nearby young moving groups, exploiting the full power of combining the RAVE survey with several stellar age diagnostic methods and follow-up high-resolution optical spectroscopy. The results include the identification of one new and five likely members of the beta Pictoris moving group, ranging from spectral types F9 to M4 with the majority being M dwarfs, one K7 likely member of the epsilon Cha group and two stars in the Tuc-Hor association. Based on the positive identifications we foreshadow a great potential of the RAVE database in progressing toward a full census of young moving groups in the solar neighbourhood.