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

Natalie R. Hinkel, Eric E. Mamajek, Margaret C. Turnbull, Ella Osby, Evgenya Shkolnik, Graeme H. Smith, Alexis Klimasewski, Garrett Somers, Steven Desch

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

Almost every star in our Galaxy is likely to harbor a terrestrial planet, but accurate measurements of an exoplanet's mass and radius demand 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 that CATSUP will be useful for discerning other trends among stars within the nearby solar neighborhood, for comparing thin-disk versus thick-disk stars, for comparing stars with and without planets, and for finding correlations between chemical and kinematic properties.

Original languageEnglish (US)
Article number34
JournalAstrophysical Journal
Volume848
Issue number1
DOIs
StatePublished - Oct 10 2017

Keywords

  • X-rays: stars
  • catalogs
  • solar neighborhood
  • stars: abundances
  • stars: fundamental parameters
  • ultraviolet: stars

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Hinkel, N. R., Mamajek, E. E., Turnbull, M. C., Osby, E., Shkolnik, E., Smith, G. H., Klimasewski, A., Somers, G., & Desch, S. (2017). A Catalog of Stellar Unified Properties (CATSUP) for 951 FGK-Stars within 30 pc. Astrophysical Journal, 848(1), [34]. https://doi.org/10.3847/1538-4357/aa8b0f