... cluster

Table 1 is only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/463/503

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... package

Carnegie Observatories System for MultiObject Spectroscopy, http://llama.lco.cl/~aoemler/COSMOS.html

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...algorithm

The fit errors were derived from random resampling of the data points within their measured scatter. Given that the scatter of values in Fig. 6 is much larger than the measurement uncertainty in both $V_{\rm0}$ and  $\mu _{\rm V,0}$, we do not error weight the data points in the fit.

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... algorithm

For this fitting we weighted each data point by its colour error, given that the scatter in the CMD is consistent with being entirely created by colour measurement errors.

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