James Braatz, James Condon, Christian Henkel, Jenny Greene, Fred Lo, Mark Reid, Dominic Pesce, Feng Gao, Violette Impellizzeri, Cheng-Yu Kuo, Wei Zhao, Anca Constantin, Lei Hao, Eugenia Litzinger et al.
Abstract:AbstractThe Megamaser Cosmology Project (MCP) measures the Hubble Constant by determining geometric distances to circumnuclear 22 GHz H2O megamasers in galaxies at low redshift (z < 0.05) but well into the Hubble flow. In combination with the recent, exquisite observations of the Cosmic Microwave Background by WMAP and Planck, these measurements provide a direct test of the standard cosmological model and constrain the equation of state of dark energy. The MCP is a multi-year project that has recently compl…
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