A 2.4% DETERMINATION OF THE LOCAL VALUE OF THE HUBBLE CONSTANT<sup>*</sup>

G. Riess, Adam; M. Macri, Lucas; L. Hoffmann, Samantha; Scolnic, Dan; Casertano, Stefano; V. Filippenko, Alexei; E. Tucker, Brad; J. Reid, Mark; O. Jones, David; M. Silverman, Jeffrey; Chornock, Ryan; Challis, Peter; Yuan, Wenlong; J. Brown, Peter; J. Foley, Ryan

doi:10.3847/0004-637x/826/1/56

Public

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

Published in The Astrophysical Journal • Jul 20, 2016

Authors:

Adam G. Riess

Lucas M. Macri

Samantha L. Hoffmann

Abstract

ABSTRACT 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 from 3.3% to 2.4%. The bulk of this improvement comes from new near-infrared (NIR) observations of Cepheid variables in 11 host galaxies of recent ty...

Subject

Cepheid variable

Physics

Astrophysics

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