Cosmological parameters from pre-planck cosmic microwave background measurements

Erminia Calabrese et al.
Phys. Rev. D 87, 103012 – Published 20 May 2013

Abstract

Recent data from the WMAP, ACT and SPT experiments provide precise measurements of the cosmic microwave background temperature power spectrum over a wide range of angular scales. The combination of these observations is well fit by the standard, spatially flat ΛCDM cosmological model, constraining six free parameters to within a few percent. The scalar spectral index, ns=0.9690±0.0089, is less than unity at the 3.5σ level, consistent with simple models of inflation. The damping tail of the power spectrum at high resolution, combined with the amplitude of gravitational lensing measured by ACT and SPT, constrains the effective number of relativistic species to be Neff=3.28±0.40, in agreement with the standard model’s three species of light neutrinos.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 12 February 2013

DOI:https://doi.org/10.1103/PhysRevD.87.103012

© 2013 American Physical Society

Authors & Affiliations

Click to Expand

See Also

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, and Edward J. Wollack
Phys. Rev. D 95, 063525 (2017)

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 87, Iss. 10 — 15 May 2013

Reuse & Permissions
Access Options
CHORUS

Article Available via CHORUS

Download Accepted Manuscript
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review D

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×