Cosmological Parameters from pre-Planck CMB Measurements: a 2017 Update
Abstract
We present cosmological constraints from the combination of the full mission 9-year WMAP release and small-scale temperature data from the pre-Planck ACT and SPT generation of instruments. This is an update of the analysis presented in Calabrese et al. 2013 and highlights the impact on CDM cosmology of a 0.06 eV massive neutrino - which was assumed in the Planck analysis but not in the ACT/SPT analyses - and a Planck-cleaned measurement of the optical depth to reionization. We show that cosmological constraints are now strong enough that small differences in assumptions about reionization and neutrino mass give systematic differences which are clearly detectable in the data. We recommend that these updated results be used when comparing cosmological constraints from WMAP, ACT and SPT with other surveys or with current and future full-mission Planck cosmology. Cosmological parameter chains are publicly available on the NASA's LAMBDA data archive.
Cite
@article{arxiv.1702.03272,
title = {Cosmological Parameters from pre-Planck CMB Measurements: a 2017 Update},
author = {Erminia Calabrese and Renée A. Hložek and J. Richard Bond and Mark J. Devlin and Joanna Dunkley and Mark Halpern and Adam D. Hincks and Kent D. Irwin and Arthur Kosowsky and Kavilan Moodley and Laura B. Newburgh and Michael D. Niemack and Lyman A. Page and Blake D. Sherwin and Jonathan L. Sievers and David N. Spergel and Suzanne T. Staggs and Edward J. Wollack},
journal= {arXiv preprint arXiv:1702.03272},
year = {2017}
}
Comments
This is a short note to accompany the revised cosmological parameter chains available on LAMBDA