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2002MNRAS.331...45K - Mon. Not. R. Astron. Soc., 331, 45-59 (2002/March-3)

New periodic variables from the Hipparcos epoch photometry.

KOEN C. and EYER L.

Abstract (from CDS):

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 30000 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 data are de-trended by low-order polynomials. We find 2675 new candidate periodic variables, of which the majority (2082) are from the Hipparcos `unsolved' variables. Potential problems with the interpretation of the data (e.g. aliasing) are discussed.

Abstract Copyright: 2002 Blackwell Science Ltd

Journal keyword(s): methods: data analysis - methods: statistical - stars: variables: other

VizieR on-line data: <Available at CDS (J/MNRAS/331/45): table5.dat>

Simbad objects: 2686

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