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Title: Tensions between direct measurements of the lens power spectrum from Planck data

Journal Article · · Physical Review D
 [1];  [1]
  1. Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics (KICP)

We apply a recently developed method to directly measure the gravitational lensing power spectrum from CMB power spectra to the Planck satellite data. This method allows us to analyze the tension between the temperature power spectrum and lens reconstruction in a model independent way. Even when allowing for arbitrary variations in the lensing power spectrum, the tension remains at the 2.4σ level. By separating the lensing and unlensed high redshift information in the CMB power spectra, we also show that under ΛCDM the two are in tension at a similar level whereas the unlensed information is consistent with lensing reconstruction. These anomalies are driven by the smoother acoustic peaks relative to ΛCDM at ℓ ~1250-1500. Both tensions relax slightly when polarization data are considered. This technique also isolates the one combination of the lensing power spectrum multipoles that the Planck CMB power spectra currently constrain and can be straightforwardly generalized to future data when CMB power spectra constrain multiple aspects of lensing which are themselves correlated with lensing reconstruction

Research Organization:
Univ. of Chicago, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); National Aeronautics and Space Administration (NASA); National Science Foundation (NSF)
Grant/Contract Number:
SC0009924; PHY-1125897; FG02-13ER41958
OSTI ID:
1594000
Alternate ID(s):
OSTI ID: 1439499
Journal Information:
Physical Review D, Vol. 97, Issue 10; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 25 works
Citation information provided by
Web of Science

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Cited By (6)

Testing general relativity in cosmology journal December 2018
Planck evidence for a closed Universe and a possible crisis for cosmology journal November 2019
Phenomenology of modified gravity at recombination journal February 2019
Accounting for Correlations When Fitting Extra Cosmological Parameters journal September 2019
Phenomenology of Modified Gravity at Recombination text January 2018
Planck evidence for a closed Universe and a possible crisis for cosmology text January 2019

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