CMB anisotropy power spectrum using linear combinations of WMAP maps
arXiv:0706.3567 · doi:10.1103/PhysRevD.78.023003
Abstract
In recent years the goal of estimating different cosmological parameters precisely has set new challenges in the effort to accurately measure the angular power spectrum of CMB. This has required removal of foreground contamination as well as detector noise bias with reliability and precision. Recently, a novel {\em model-independent} method for the estimation of CMB angular power spectrum solely from multi-frequency observations has been proposed and implemented on the first year WMAP data by Saha et al. 2006. All previous estimates of power spectrum of CMB are based upon foreground templates using data sets from different experiments. However our methodology demonstrates that {\em CMB angular spectrum can be reliably estimated with precision from a self contained analysis of the WMAP data}. In this work we provide a detailed description of this method. We also study and identify the biases present in our power spectrum estimate. We apply our methodoly to extract the power spectrum from the WMAP 1 year and 3 year data.
38 pages, 17 figures
References in corpus (29)
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Preliminary Maps and Basic Results
- The Cosmic Microwave Background Spectrum from the Full COBE/FIRAS Data Set
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Foreground Emission
- Three-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Temperature Analysis
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Angular Power Spectrum
- MASTER of the CMB Anisotropy Power Spectrum: A Fast Method for Statistical Analysis of Large and Complex CMB Data Sets
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Tests of Gaussianity
- A high resolution foreground cleaned CMB map from WMAP
- The Microwave Anisotropy Probe (MAP) Mission
- Calibrator Design for the COBE Far Infrared Absolute Spectrophotometer (FIRAS)
- A method for subtracting foregrounds from multi-frequency CMB sky maps
- Foregrounds and Forecasts for the Cosmic Microwave Background
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Interpretation of the TT and TE Angular Power Spectrum Peaks
- On Foreground Removal from the Wilkinson Microwave Anisotropy Probe Data by an Internal Linear Combination Method: Limitations and Implications
- A Measurement of the Angular Power Spectrum of the CMB Temperature Anisotropy from the 2003 Flight of Boomerang
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Data Processing Methods and Systematic Errors Limits
- Three-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Beam Profiles, Data Processing, Radiometer Characterization and Systematic Error Limits
- First Intrinsic Anisotropy Observations with the Cosmic Background Imager
- Foregrounds and CMB Experiments: I. Semi-analytical estimates of contamination
- Xspect, estimation of the angular power spectrum by computing cross-power spectra with analytical error bars
- Design, Implementation and Testing of the MAP Radiometers
- Removing point sources from CMB maps
- A re-analysis of the three-year WMAP temperature power spectrum and likelihood
- Archeops: A High Resolution, Large Sky Coverage Balloon Experiment for Mapping CMB Anisotropies
- Removing real-world foregrounds from CMB maps
- A blind estimation of the power spectrum of CMB anisotropy from WMAP
- Point-Source Power in 3 Year Wilkinson Microwave Anisotropy Probe Data
- Determining cosmic microwave background anisotropies in the presence of foregrounds
- Angular power spectrum of CMB anisotropy from WMAP
Cited by in corpus (35)
- A model of diffuse Galactic Radio Emission from 10 MHz to 100 GHz
- A needlet ILC analysis of WMAP 7-year data: estimation of CMB temperature map and power spectrum
- The tensor-to-scalar ratio in punctuated inflation
- Exploring Cosmic Origins with CORE: B-mode Component Separation
- A needlet ILC analysis of WMAP 9-year polarisation data: CMB polarisation power spectra
- Parity Asymmetry in the CMBR Temperature Power Spectrum
- Unbiased methods for removing systematics from galaxy clustering measurements
- Unbiased pseudo-Cl power spectrum estimation with mode projection
- Performance forecasts for the primordial gravitational wave detection pipelines for AliCPT-1
- In-flight polarization angle calibration for LiteBIRD: blind challenge and cosmological implications
- An Improved Diffuse Foreground Subtraction by ILC method: CMB Map and Angular Power Spectrum using Planck and WMAP Observations
- Exploring two-spin internal linear combinations for the recovery of the CMB polarization
- A Global ILC Approach in Pixel Space over Large Angular Scales of the Sky using CMB Covariance Matrix
- CMB Polarization and Temperature Power Spectra Estimation using Linear Combination of WMAP 5-year Maps
- Effect of Foregrounds on the CMBR Multipole Alignment
- A Perturbative Analysis of Synchrotron Spectral Index Variation over Microwave Sky
- CMB power spectrum estimation with non-circular beam and incomplete sky coverage
- Testing the ABS method with the simulated Planck temperature maps
- Direct measurement of the angular power spectrum of cosmic microwave background temperature anisotropies in the WMAP Data
- A method of weak lensing reconstruction through cosmic magnification with multi-band photometry information
- An Unbiased Estimator of the Full-sky CMB Angular Power Spectrum at Large Scales using Neural Networks
- Foreground Maps in WMAP frequency bands
- Forecast of foreground cleaning strategies for AliCPT-1
- Weak Lensing Magnification Reconstruction with the Modified Internal Linear Combination Method
- An Accurate Reconstruction of CMB E Mode Signal over Large Angular Scales using Prior Information of CMB Covariance Matrix in ILC Algorithm
- Model Independent Foreground Power Spectrum Estimation using WMAP 5-year Data
- The power spectrum of the cosmic microwave background Kolmogorov maps: possible clue to correlation of voids
- Application of Genetic Algorithm to Estimate the Large Angular Scale Features of Cosmic Microwave Background
- Challenges in Cosmic Magnification Reconstruction by Magnification Response
- A Bayesian ILC method for CMB B-mode posterior estimation and reconstruction of primordial gravity wave signal
- Foreground removal and angular power spectrum estimation of 21 cm signal using harmonic space ILC method
- LiteBIRD science goals and forecasts: improved full-sky reconstruction of the gravitational lensing potential through the combination of Planck and LiteBIRD data
- A Partial-Sky Gibbs ILC Approach for the Estimation of CMB Posterior over Large Angular Scales of the Sky
- A Foreground Model Independent Bayesian CMB Temperature and Polarization Signal Reconstruction and Cosmological Parameter Estimation over Large Angular Scales
- On the detection of point sources in Planck LFI 70 GHz CMB maps based on cleaned K-map