A 2.4% DETERMINATION OF THE LOCAL VALUE OF THE HUBBLE CONSTANT*

@article{Riess2016A2D,
  title={A 2.4% DETERMINATION OF THE LOCAL VALUE OF THE HUBBLE CONSTANT*},
  author={A. Riess and L. Macri and S. Hoffmann and D. Scolnic and S. Casertano and A. Filippenko and B. Tucker and M. Reid and D. Jones and J. Silverman and R. Chornock and P. Challis and W. Yuan and P. Brown and R. Foley},
  journal={The Astrophysical Journal},
  year={2016},
  volume={826},
  pages={56}
}
  • A. Riess, L. Macri, +12 authors R. Foley
  • Published 2016
  • Physics
  • The Astrophysical Journal
  • We use the Wide Field Camera 3 (WFC3) on the Hubble Space Telescope (HST) to reduce the uncertainty in the local value of the Hubble constant (H_0) from 3.3% to 2.4%. Improvements come from new, near-infrared observations of Cepheid variables in 11 new hosts of recent SNe~Ia, more than doubling the sample of SNe~Ia having a Cepheid-calibrated distance for a total of 19; these leverage the magnitude-z relation based on 300 SNe~Ia at z<0.15. All 19 hosts and the megamaser system NGC4258 were… CONTINUE READING
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