## Abstract

We present an improved measurement of the Hubble constant (H_{0}) using the ‘inverse distance ladder’ method, which adds the information from 207 Type Ia supernovae (SNe Ia) from the Dark Energy Survey (DES) at redshift 0.018 < z < 0.85 to existing distance measurements of 122 low redshift (z < 0.07) SNe Ia (Low-z) and measurements of Baryon Acoustic Oscillations (BAOs). Whereas traditional measurements of H_{0} with SNe Ia use a distance ladder of parallax and Cepheid variable stars, the inverse distance ladder relies on absolute distance measurements from the BAOs to calibrate the intrinsic magnitude of the SNe Ia. We find H_{0} = 67.8 ± 1.3 km s^{−1} Mpc^{−1} (statistical and systematic uncertainties, 68% confidence). Our measurement makes minimal assumptions about the underlying cosmological model, and our analysis was blinded to reduce confirmation bias. We examine possible systematic uncertainties and all are below the statistical uncertainties. Our H_{0} value is consistent with estimates derived from the Cosmic Microwave Background assuming a ΛCDM universe (Planck Collaboration et al. 2018).

Original language | English (US) |
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Journal | Unknown Journal |

State | Published - Nov 6 2018 |

## Keywords

- Cosmology: cosmological parameters
- Cosmology: distance scale
- Cosmology: observations

## ASJC Scopus subject areas

- General