Baryon acoustic oscillations (BAO) at low redshift provide a precise and largely model-independent way to measure the Hubble constant, H0. The 6dF Galaxy Survey measurement of the BAO scale gives a value of H0 = 67 +/- 3.2 km/s/Mpc, achieving a 1-sigma precision of 5%. With improved analysis techniques, the planned WALLABY (HI) and TAIPAN (optical) redshift surveys are predicted to measure H0 to 1-3% precision.
@article{arxiv.1211.2570,
title = {Measuring H0 from the 6dF Galaxy Survey and future low-redshift surveys},
author = {Matthew Colless and Florian Beutler and Chris Blake},
journal= {arXiv preprint arXiv:1211.2570},
year = {2015}
}
Comments
Proceedings of IAU Symposium 289, "Advancing the Physics of Cosmic Distances", Richard de Grijs & Giuseppe Bono (eds), 2012, 4pp