# SEVEN-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE (WMAP ) OBSERVATIONS: ARE THERE COSMIC MICROWAVE BACKGROUND ANOMALIES?

@article{Bennett2011SEVENYEARWM, title={SEVEN-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE (WMAP ) OBSERVATIONS: ARE THERE COSMIC MICROWAVE BACKGROUND ANOMALIES?}, author={Charles L. Bennett and Robert S. Hill and Gary F. Hinshaw and David L. Larson and K. M. Smith and Jo Dunkley and Benjamin Gold and Mark Halpern and Norman Jarosik and Alan Kogut and Eiichiro Komatsu and Michele Limon and Stephan S. Meyer and Michael R. Nolta and N. Odegard and Lyman A. Page and David N. Spergel and Gregory S. Tucker and Janet L. Weiland and Edward J. Wollack and E. L. Wright}, journal={The Astrophysical Journal Supplement Series}, year={2011}, volume={192} }

A simple six-parameter ΛCDM model provides a successful fit to WMAP data. This holds both when the WMAP data are analyzed alone or in combination with other cosmological data. Even so, it is appropriate to examine the data carefully to search for hints of deviations from the now standard model of cosmology, which includes inflation, dark energy, dark matter, baryons, and neutrinos. The cosmological community has subjected the WMAP data to extensive and varied analyses. While there is widespread…

## Figures from this paper

## 499 Citations

NINE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE (WMAP) OBSERVATIONS: FINAL MAPS AND RESULTS

- Physics
- 2013

We present the final nine-year maps and basic results from the Wilkinson Microwave Anisotropy Probe (WMAP) mission. The full nine-year analysis of the time-ordered data provides updated…

Testing cosmological models with large-scale power modulation using microwave background polarization observations

- Physics, Environmental Science
- 2016

We examine the degree to which observations of large-scale cosmic microwave background (CMB) polarization can shed light on the puzzling large-scale power modulation in maps of CMB anisotropy. We…

SEVEN-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE (WMAP) OBSERVATIONS: POWER SPECTRA AND WMAP-DERIVED PARAMETERS

- Physics
- 2010

The WMAP mission has produced sky maps from seven years of observations at L2. We present the angular power spectra derived from the seven-year maps and discuss the cosmological conclusions that can…

On preferred axes in WMAP cosmic microwave background data after subtraction of the integrated Sachs-Wolfe effect

- Physics
- 2013

There is currently a debate over the existence of claimed statistical anomalies in the cosmic microwave background (CMB), recently confirmed in Planck data. Recent work has focussed on methods for…

Large-angle cosmic microwave background suppression and polarization predictions

- Physics
- 2013

The anomalous lack of large-angle temperature correlations has been a surprising feature of the cosmic microwave background (CMB) since first observed by COBE-DMR and subsequently confirmed and…

Testing the Origin of the CMB Large-Angle Correlation Deficit with a Galaxy Imaging Survey

- Physics, Geology
- 2011

The cosmic microwave background (CMB) temperature distribution measured by the Wilkinson Microwave Anisotropy Probe (WMAP) exhibits anomalously low correlation at large angles. Quantifying the degree…

Testing the origin of the CMB large-angle correlation deficit with a galaxy imaging survey

- Physics, Geology
- 2011

The cosmic microwave background (CMB) temperature distribution measured by the Wilkinson Microwave Anisotropy Probe (WMAP) exhibits anomalously low correlation at large angles. Quantifying the degree…

A Quadratic Estimator for Statistical Anisotropy in the Cosmic Microwave Background

- Physics
- 2011

The standard model of cosmology has proven to be a great success. Through measurements of the Cosmic Microwave Background radiation, cosmologists have been able to constrain parameters such as the…

COSMOLOGICAL IMPLICATIONS OF THE CMB LARGE-SCALE STRUCTURE

- Physics
- 2012

The Wilkinson Microwave Anisotropy Probe (WMAP) and Planck may have uncovered several anomalies in the full cosmic microwave background (CMB) sky that could indicate possible new physics driving the…

Joint Planck and WMAP assessment of low CMB multipoles

- Physics
- 2015

The remarkable progress in cosmic microwave background (CMB) studies over past decade has led to the era of precision cosmology in striking agreement with the ΛCDM model. However, the lack of power…

## References

SHOWING 1-10 OF 115 REFERENCES

A low cosmic microwave background variance in the Wilkinson Microwave Anisotropy Probe data

- Physics
- 2008

We have estimated the cosmic microwave background (CMB) variance from the three-year Wilkinson Microwave Anisotropy Probe (WMAP) data, finding a value which is significantly lower than the one…

First-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters

- Physics
- 2003

WMAP precision data enable accurate testing of cosmological models. We find that the emerging standard model of cosmology, a flat Λ-dominated universe seeded by a nearly scale-invariant adiabatic…

FIVE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE OBSERVATIONS: COSMOLOGICAL INTERPRETATION

- Physics
- 2008

The Wilkinson Microwave Anisotropy Probe (WMAP) 5-year data provide stringent limits on deviations from the minimal, six-parameter Λ cold dark matter model. We report these limits and use them to…

SEVEN-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE (WMAP) OBSERVATIONS: POWER SPECTRA AND WMAP-DERIVED PARAMETERS

- Physics
- 2010

The WMAP mission has produced sky maps from seven years of observations at L2. We present the angular power spectra derived from the seven-year maps and discuss the cosmological conclusions that can…

Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Data Processing, Sky Maps, & Basic Results

- Physics
- 2008

We present new full-sky temperature and polarization maps in five frequency bands from 23 to 94 GHz, based on data from the first five years of the WMAP sky survey. The new maps are consistent with…

The hot and cold spots in five–year WMAP data

- Physics
- 2009

We present an extensive frequentist analysis of the one-point statistics (number, mean, variance,
skewness and kurtosis) and two-point correlation functions determined for the local extrema
of the…

Uncorrelated universe: Statistical anisotropy and the vanishing angular correlation function in WMAP years 1 3

- Physics
- 2007

The large-angle (low-l) correlations of the cosmic microwave background (CMB) as reported by the Wilkinson Microwave Anisotropy Probe (WMAP) after their first year of observations exhibited…

BAYESIAN ANALYSIS OF SPARSE ANISOTROPIC UNIVERSE MODELS AND APPLICATION TO THE FIVE-YEAR WMAP DATA

- Physics
- 2008

We extend the previously described cosmic microwave background Gibbs sampling framework to allow for exact Bayesian analysis of anisotropic universe models, and apply this method to the five-year…

First-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Data Processing Methods and Systematic Error Limits

- Physics
- 2003

We describe the calibration and data processing methods used to generate full-sky maps of the cosmic microwave background (CMB) from the first year of Wilkinson Microwave Anisotropy Probe (WMAP)…

Three-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Temperature Analysis

- Physics
- 2006

We present new full-sky temperature maps in five frequency bands from 23 to 94 GHz, based on data from the first 3 years of the WMAP sky survey. The new maps are consistent with the first-year maps…