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New periodic variables from the Hipparcos epoch photometry Two selection statistics are used to extract new candidate periodicvariables from the epoch photometry of the Hipparcos catalogue. Theprimary selection criterion is a signal-to-noise ratio. The dependenceof this statistic on the number of observations is calibrated usingabout 30000 randomly permuted Hipparcos data sets. A significance levelof 0.1 per cent is used to extract a first batch of candidate variables.The second criterion requires that the optimal frequency be unaffectedif the data are de-trended by low-order polynomials. We find 2675 newcandidate periodic variables, of which the majority (2082) are from theHipparcos`unsolved' variables. Potential problems with theinterpretation of the data (e.g. aliasing) are discussed.
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| Not Available Not Available
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Osservazione e dati astrometrici
Costellazione: | Vele |
Ascensione retta: | 10h04m45.97s |
Declinazione: | -54°57'03.0" |
Magnitudine apparente: | 8.022 |
Distanza: | 1587.302 parsec |
Moto proprio RA: | -9.6 |
Moto proprio Dec: | 1.3 |
B-T magnitude: | 7.983 |
V-T magnitude: | 8.019 |
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