Search for Variables in the TYCHO Epoch Photometry Annex B

Details Search for Variables in the TYCHO Epoch Photometry Annex B Search for Variables in the TYCHO Epoch Photometry Annex B

Aug 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997esasp.402..441f&link_type=abstract

Proceedings of the ESA Symposium `Hipparcos - Venice '97', 13-16 May, Venice, Italy, ESA SP-402 (July 1997), p. 441-444

Physics

3

Scientific paper

In order to automatically identify intrinsic variable stars in the Tycho Epoch Photometry Annex B (TEP/B) we have tried various methods. The simplest one was to look for stars with high standard deviations or scatter in their V_T magnitudes. As an alternative approach, we have used different statistical moments like skewness and kurtosis to derive reasonable estimates on non-Gaussian variability in the Tycho light-curves. We also applied an epoch folding method to emphasize any occuring periodic structure.

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