... Cepheids

Based on observations collected at the European Southern Observatory (La Silla, Chile) and at the Observatoire de Haute-Provence (France).

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...1990)

However, see Bono et al. (2000a) for a different interpretation.

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... unweighted

The nominal uncertainties were not used, because the cross-correlation function for Cepheids is subject to large shape changes along the pulsation cycle. These changes blur the relation between the computed uncertainty and the real velocity error.

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