New periodic variables from the Hipparcos epoch photometry

  title={New periodic variables from the Hipparcos epoch photometry},
  author={Chris Koen and Laurent Eyer},
  journal={Monthly Notices of the Royal Astronomical Society},
  • C. KoenL. Eyer
  • Published 7 December 2001
  • Physics
  • Monthly Notices of the Royal Astronomical Society
Two selection statistics are used to extract new candidate periodic variables from the epoch photometry of the Hipparcos catalogue. The primary selection criterion is a signal-to-noise ratio. The dependence of this statistic on the number of observations is calibrated using about 30 000 randomly permuted Hipparcos data sets. A significance level of 0.1 per cent is used to extract a first batch of candidate variables. The second criterion requires that the optimal frequency be unaffected if the… 

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