The Effect of Hot Gas in the First-Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Data

2004 ◽  
Vol 613 (2) ◽  
pp. L89-L92 ◽  
Author(s):  
C. Hernández-Monteagudo ◽  
R. Genova-Santos ◽  
F. Atrio-Barandela
Keyword(s):  
Wilkinson Microwave Anisotropy Probe ◽  
First Year ◽  
Hot Gas ◽  
Wmap Data

COSMOLOGICAL IMPLICATIONS OF THE FIRST YEAR WILKINSON MICROWAVE ANISOTROPY PROBE RESULTS

2004 ◽  
Vol 19 (07) ◽  
pp. 1121-1131 ◽  
Author(s):  
L. VERDE
Keyword(s):  
Large Scale ◽  
Supplementary Information ◽  
Wilkinson Microwave Anisotropy Probe ◽  
Small Scale ◽  
First Year ◽  
Astronomical Observations ◽  
Likelihood Analysis ◽  
Joint Likelihood ◽  
Standard Cosmological Model ◽  
Wmap Data

The Wilkinson Microwave Anisotropy Probe (WMAP) team has recently analyzed and released the first-year data. We will review the implications for cosmology of these results. The highlight is that cosmology now has a standard cosmological model. With only 6 parameters the model fits not only WMAP data remarkably well, but also a host of other astronomical observations. We also present the results on neutrino mass limits and on dark energy properties from a joint likelihood analysis of WMAP data with small-scale CMB experiments and large-scale structure surveys. The data and supplementary information are publicly available and can be found on the experiment web site at .

scholarly journals First‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Determination of Cosmological Parameters

2003 ◽  
Vol 148 (1) ◽  
pp. 175-194 ◽  
Author(s):  
D. N. Spergel ◽  
L. Verde ◽  
H. V. Peiris ◽  
E. Komatsu ◽  
M. R. Nolta ◽  
...  
Keyword(s):  
Cosmological Parameters ◽  
Wilkinson Microwave Anisotropy Probe ◽  
First Year

scholarly journals First‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Galactic Signal Contamination from Sidelobe Pickup

2003 ◽  
Vol 148 (1) ◽  
pp. 51-62 ◽  
Author(s):  
C. Barnes ◽  
R. S. Hill ◽  
G. Hinshaw ◽  
L. Page ◽  
C. L. Bennett ◽  
...  
Keyword(s):  
Wilkinson Microwave Anisotropy Probe ◽  
First Year

scholarly journals First‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Foreground Emission

2003 ◽  
Vol 148 (1) ◽  
pp. 97-117 ◽  
Author(s):  
C. L. Bennett ◽  
R. S. Hill ◽  
G. Hinshaw ◽  
M. R. Nolta ◽  
N. Odegard ◽  
...  
Keyword(s):  
Wilkinson Microwave Anisotropy Probe ◽  
First Year

scholarly journals First‐Year Wilkinson Microwave Anisotropy Probe ( WMAP ) Observations: Parameter Estimation Methodology

2003 ◽  
Vol 148 (1) ◽  
pp. 195-211 ◽  
Author(s):  
L. Verde ◽  
H. V. Peiris ◽  
D. N. Spergel ◽  
M. R. Nolta ◽  
C. L. Bennett ◽  
...  
Keyword(s):  
Parameter Estimation ◽  
Wilkinson Microwave Anisotropy Probe ◽  
First Year

FOREGROUND ANALYSIS FROM THE 1-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE (WMAP) DATA

2005 ◽  
Vol 14 (07) ◽  
pp. 1273-1292 ◽  
Author(s):  
PAVEL D. NASELSKY ◽  
LUNG-YIH CHIANG ◽  
IGOR D. NOVIKOV ◽  
OLEG V. VERKHODANOV
Keyword(s):  
Detailed Analysis ◽  
Cross Correlation ◽  
Dust Emission ◽  
Wilkinson Microwave Anisotropy Probe ◽  
Spectral Indices ◽  
Frequency Independent ◽  
Invariant Part ◽  
Foreground Analysis ◽  
Wmap Data ◽  
Common Signal

We present a detailed analysis on the phases of the WMAP foregrounds (synchrotron, free–free and dust emission) of the WMAP K–W bands in order to estimate the significance of the variation of the spectral indices at different components. We first extract the spectral-index varying signals by assuming that the invariant part among different frequency bands have 100% cross-correlation of phases. We then use the minimization of variance, which is normally used for extracting the CMB signals, to extract the frequency independent signals. Such a common signal in each foreground component could play a significant role for any kind of component separation methods, because the methods cannot discriminate frequency independent foregrounds and CMB.

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