Poster Abstracts

Name/Affiliation:  Bárbara Rojas-Ayala (CAUP)

Title:  Color Metallicities for SUPERBLINK Early M Dwarfs

Abstract:
The metallicity of M dwarf stars provides insights on the enrichment history of the Galaxy, on planet formation, and can aid to the identification of low-mass members of nearby stellar associations. While spectroscopic techniques are preferred to accurately estimate stellar parameters of stars, a larger amount of low-mass stars are accessible with current photometric surveys. We present color based techniques to estimate the metallicity of early M dwarfs from public available photometric catalogs. The techniques are based on photometry from $WISE$, $UCAC4$, and $2MASS$ surveys and are calibrated with common proper motion systems, consisting on a FGK stars with reliable metallicities and M dwarf companions. Our techniques are qualitatively validated by synthetic models and by M+M common proper motion systems, and return expected metallicities of young associations/moving groups from kinematically likely low-mass members.