A Catalog of Stellar Unified Properties (CATSUP) for 951 FGK-Stars Within 30 pc

TL;DR

CATSUP is a comprehensive catalog of 951 nearby FGK stars that integrates various stellar properties to aid in exoplanet research and understanding stellar populations.

Contribution

This work compiles and analyzes a multi-faceted stellar catalog, providing new insights into stellar activity, age, and kinematic correlations within 30 parsecs.

Findings

Thick-disk stars are older, less active, and have higher velocities.

Correlations found between stellar emission indices, colors, and galactic velocity.

CATSUP enables comparative studies of stellar populations and exoplanet host stars.

Abstract

Almost every star in our Galaxy is likely to harbor a terrestrial planet, but accurate measurements of an exoplanet's mass and radius demands accurate knowledge of the properties of its host star. The imminent TESS and CHEOPS missions are slated to discover thousands of new exoplanets. Along with WFIRST, which will directly image nearby planets, these surveys make urgent the need to better characterize stars in the nearby solar neighborhood (< 30 pc). We have compiled the CATalog of Stellar Unified Properties (CATSUP) for 951 stars, including such data as: Gaia astrometry; multiplicity within stellar systems; stellar elemental abundance measurements; standardized spectral types; Ca II H and K stellar activity indices; GALEX NUV and FUV photometry; and X-ray fluxes and luminosities from ROSAT, XMM, and Chandra. We use this data-rich catalog to find correlations, especially between stellar emission indices, colors, and galactic velocity. Additionally, we demonstrate that thick-disk stars in the sample are generally older, have lower activity, and have higher velocities normal to the galactic plane. We anticipate CATSUP will be useful in discerning other trends among stars within the nearby solar neighborhood, for comparing thin-disk vs. thick-disk stars, for comparing stars with and without planets, and for finding correlations between chemical and kinematic properties.