An Improved Measurement of the Hubble Constant from the Sunyaev-Zeldovich Effect
Astrophysics
2017-08-23 v1
Abstract
We present a determination of the Hubble constant from measurements of the Sunyaev-Zeldovich Effect (SZE) in an orientation-unbiased sample of 7 z < 0.1 galaxy clusters. With improved X-ray models and a more accurate 32-GHz calibration, we obtain H_O = 64+14-11 +/- 14_sys km/s/Mpc. for a standard CDM cosmology, or 66+14-11 +/- 15_sys km/s/Mpc for a flat LambdaCDM cosmology. In combination with X-ray cluster measurements and the BBN value for Omega_B, we find Omega_M = 0.32 +/- 0.05.
Cite
@article{arxiv.astro-ph/0101169,
title = {An Improved Measurement of the Hubble Constant from the Sunyaev-Zeldovich Effect},
author = {Brian S. Mason and Steven T. Myers and A. C. S. Readhead},
journal= {arXiv preprint arXiv:astro-ph/0101169},
year = {2017}
}
Comments
5 pp., Accepted for publication in ApJL