Cosmological parameters from pre-Planck CMB measurements: A 2017 update

Erminia Calabrese, Renée A. HloŽek, J. Richard Bond, Mark J. Devlin, Joanna Dunkley, Mark Halpern, Adam D. Hincks, Kent D. Irwin, Arthur Kosowsky, Kavilan Moodley, Laura B. Newburgh, Michael D. Niemack, Lyman A. Page, Blake D. Sherwin, Jonathan L. Sievers, David N. Spergel, Suzanne T. Staggs, Edward J. Wollack

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38 Scopus citations


We present cosmological constraints from the combination of the full mission nine-year WMAP release and small-scale temperature data from the pre-Planck Atacama Cosmology Telescope (ACT) and South Pole Telescope (SPT) generation of instruments. This is an update of the analysis presented in Calabrese et al. [Phys. Rev. D 87, 103012 (2013)PRVDAQ1550-799810.1103/PhysRevD.87.103012], and highlights the impact on ΛCDM 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.

Original languageEnglish (US)
Article number063525
JournalPhysical Review D
Issue number6
StatePublished - Mar 28 2017

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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