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Cosmological parameters from pre-planck cosmic microwave background measurements

Author(s): Calabrese, Erminia; Hlozek, Renee EA; Battaglia, Nick; Battistelli, Elia S; Bond, J Richard; et al

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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 Lambda CDM cosmological model, constraining six free parameters to within a few percent. The scalar spectral index, n(s) = 0.9690 +/- 0.0089, is less than unity at the 3.5 sigma 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 N-eff = 3.28 +/- 0.40, in agreement with the standard model’s three species of light neutrinos.
Publication Date: 15-May-2013
Electronic Publication Date: 20-May-2013
Citation: Calabrese, Erminia, Hlozek, Renee EA, Battaglia, Nick, Battistelli, Elia S, Bond, J Richard, Chluba, Jens, Crichton, Devin, Das, Sudeep, Devlin, Mark J, Dunkley, Joanna, Duenner, Rolando, Farhang, Marzieh, Gralla, Megan B, Hajian, Amir, Halpern, Mark, Hasselfield, Matthew, Hincks, Adam D, Irwin, Kent D, Kosowsky, Arthur, Louis, Thibaut, Marriage, Tobias A, Moodley, Kavilan, Newburgh, Laura, Niemack, Michael D, Nolta, Michael R, Page, Lyman A, Sehgal, Neelima, Sherwin, Blake D, Sievers, Jonathan L, Sifon, Cristobal, Spergel, David N, Staggs, Suzanne T, Switzer, Eric R, Wollack, Edward J. (2013). Cosmological parameters from pre-planck cosmic microwave background measurements. PHYSICAL REVIEW D, 87 (10.1103/PhysRevD.87.103012
DOI: doi:10.1103/PhysRevD.87.103012
ISSN: 2470-0010
EISSN: 2470-0029
Type of Material: Journal Article
Journal/Proceeding Title: PHYSICAL REVIEW D
Version: Final published version. Article is made available in OAR by the publisher's permission or policy.

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