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TYC 4076-728-1


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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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관측 및 측정 데이터

별자리:기린자리
적경:04h10m00.83s
적위:+66°48'50.0"
가시등급:9.559
적경상의 고유운동:-4.1
적위상의 고유운동:2.6
B-T magnitude:11.022
V-T magnitude:9.68

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TYCHO-2 2000TYC 4076-728-1
USNO-A2.0USNO-A2 1500-03590697
HIPHIP 19456

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