Fundamental parameters and infrared excesses of Hipparcos stars

  title={Fundamental parameters and infrared excesses of Hipparcos stars},
  author={Iain McDonald and Albert A. Zijlstra and Martha L. Boyer},
  journal={Monthly Notices of the Royal Astronomical Society},
We derive the fundamental parameters (temperature and luminosity) of 107 619 Hipparcos stars and place these stars on a true Hertzsprung–Russell diagram. This is achieved by comparing bt-settl model atmospheres to spectral energy distributions (SEDs) created from Hipparcos, Tycho, Sloan Digital Sky Survey, DENIS, Two Micron All Sky Survey, MSX, AKARI, IRAS and Wide-field Infrared Survey Explorer data. We also identify and quantify from these SEDs any infrared excesses attributable to… 

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