Summary of Results: The HST H_0 Key Project

Details Summary of Results: The HST H_0 Key Project Summary of Results: The HST H_0 Key Project

May 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...194.3909f&link_type=abstract

American Astronomical Society, 194th AAS Meeting, #39.09; Bulletin of the American Astronomical Society, Vol. 31, p.877

Astronomy and Astrophysics

Astronomy

Scientific paper

One of the "Key Projects" designated for the Hubble Space Telescope was to measure the value of the Hubble constant to an accuracy of 10%. Our group proposed to carry out this measurement by providing Cepheid distances to a sample of nearby galaxies useful for calibrating numerous secondary distance indicators. Our database of galaxies with new Cepheid distances will shortly be complete (http://www.ipac.caltech.edu/H0kp/H0KeyProj.html) and available to the entire astronomical community. In this review talk, I will focus on combining the results obtained from the Key Project, yielding a value of H_0 based on our Cepheid calibration for type Ia supernovae, the Tully Fisher relation, the fundamental plane, and surface brightness fluctuations. The largest remaining uncertainties will be discussed.

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