The Hubble Constant from the HST Key Project on the Extragalactic Distance Scale
Ferrarese, Laura · Gibson, Brad · Kelson, Daniel · Sakai, Shoko · Mould, Jeremy · Freedman, Wendy · Kennicutt, Robert · Ford, Holland · Graham, John · Huchra, John · Hughes, Shaun · Illingworth, Garth · Macri, Lucas · Madore, Barry · Sebo, Kim · Silbermann, N. A. · Stetson, Peter
Original · EN
The final efforts of the HST Key Project on the Extragalactic Distance Scale are presented. Four distance indicators, the Surface Brightness Fluctuation method, the Fundamental Plane for early-type galaxies, the Tully-Fisher relation and the Type Ia Supernovae, are calibrated using Cepheid distances to galaxies within 25 Mpc. The calibration is then applied to distant samples reaching cz 10000 km/s and (in the case of SNIa) beyond. By combining the constraints imposed on the Hubble constant by the four distance indicators, we obtain H0 = 71+/-6 km/s/Mpc.
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