# A New Cepheid Distance to the Maser-Host Galaxy NGC 4258 and Its Implications for the Hubble Constant*

@article{Macri2006ANC,
title={A New Cepheid Distance to the Maser-Host Galaxy NGC 4258 and Its Implications for the Hubble Constant*},
author={Lucas M. Macri and Krzysztof Zbigniew Stanek and David Bersier and Lincoln J. Greenhill and Mark Reid},
journal={The Astrophysical Journal},
year={2006},
volume={652},
pages={1133-1149}
}
We present initial results from a time series BVI survey of two fields in NGC 4258 using the HST ACS. This galaxy was selected because of its accurate maser-based distance, which is anticipated to have a total uncertainty of ~3%. The goal of the HST observations is to provide an absolute calibration of the Cepheid distance scale and to measure its dependence on chemical abundance (the so-called metallicity effect). We carried out observations of two fields at different galactocentric distances… Expand
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