A 2.4% DETERMINATION of the LOCAL VALUE of the HUBBLE CONSTANT
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 type Ia supernovae (SNe Ia), more than doubling the sample of reliable SNe Ia having a Cepheid-calibrated distance to a total of 19; these in turn leverage the magnitude-redshift relation based on 300 SNe Ia at...[Show more]
|Collections||ANU Research Publications|
|Source:||The Astrophysical Journal|
|Access Rights:||Open Access|
|01_Tucker+_A_2.4%25_DETERMINATION_of_the_2016.pdf||5.34 MB||Adobe PDF|
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.