Paper:	Biases in the Main Sequence Fitting Distances to Globular Clusters based on the Hipparcos Catalogue
Volume:	167, Harmonizing Cosmic Distance Scales in a Post-Hipparcos Era
Page:	255
Authors:	Carretta, Eugenio; Gratton, Raffaele G.; Clementini, Gisella; Fusi Pecci, Flavio
Abstract:	We discuss the different biases affecting the sample of field subdwarfs selected from the Hipparcos Catalogue, and used in the Main Sequence Fitting technique to derive distances to Galactic Globular Clusters. The adopted average corrections significantly affect the derived distance moduli, explaining the differences among various groups using this technique.

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