Testing asteroseismic radii of dwarfs and subgiants with Kepler and Gaia

  title={Testing asteroseismic radii of dwarfs and subgiants with Kepler and Gaia},
  author={Christian L Sahlholdt and V{\'i}ctor Silva Aguirre and Luca Casagrande and Jakob R{\o}rsted Mosumgaard and Mathias Bojsen-Hansen},
  journal={Monthly Notices of the Royal Astronomical Society},
We test asteroseismic radii of Kepler main-sequence and subgiant stars by deriving their parallaxes which are compared with those of the first Gaia data release. We compute radii based on the asteroseismic scaling relations as well as by fitting observed oscillation frequencies to stellar models for a subset of the sample, and test the impact of using effective temperatures from either spectroscopy or the infrared flux method. An offset of 3 per cent, showing no dependency on any stellar… 

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