Corpus ID: 116941004

Problems encountered in the Hipparcos variable stars analysis

  title={Problems encountered in the Hipparcos variable stars analysis},
  author={Laurent Eyer and Michel Grenon},
  • Laurent Eyer, Michel Grenon
  • Published 2000
  • Physics
  • Among the 17 volumes of results from the Hipparcos space mission, two are dedicated to variable stars. These two volumes arose from the work of two groups, one at the Geneva Observatory and one at RGO (Royal Greenwich Observatory), on the 13 million photometric measurements produced by the satellite for 118204 stars. The analysis of photometric time series permitted us to identify several instrumental and mathematical problems: overestimation of the precision, offsets in the zero-points… CONTINUE READING

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