J/ApJ/771/137 WMAP observations of Planck ESZ clusters (Ma+, 2013)
WMAP observations of Planck ESZ clusters.
Ma Y.-Z., Hinshaw G., Scott D.
<Astrophys. J., 771, 137 (2013)>
=2013ApJ...771..137M 2013ApJ...771..137M
ADC_Keywords: Clusters, galaxy ; Radio sources ; Surveys
Keywords: cosmic background radiation; cosmology: observations;
galaxies: clusters: general; large-scale structure of universe
Abstract:
We examine the Sunyaev-Zeldovich (SZ) effect in the seven year
Wilkinson Microwave Anisotropy Probe (WMAP) data by cross-correlating
it with the Planck Early-release Sunyaev-Zeldovich catalog
(Cat. VIII/88/esz). Our analysis proceeds in two parts. We first
perform a stacking analysis in which the filtered WMAP data are
averaged at the locations of the 175 Planck clusters. We then perform
a regression analysis to compare the mean amplitude of the SZ signal,
Y500, in the WMAP data to the corresponding amplitude in the Planck
data. The aggregate Planck clusters are detected in the seven year
WMAP data with a signal-to-noise ratio of 16.3. In the regression
analysis, we find that the SZ amplitude measurements agree to better
than 25%: a=1.23±0.18 for the fit Y500wmap=aY500planck.
Description:
The Planck collaboration released its ESZ cluster catalog in 2011
January (Cat. VIII/88/esz). It contained 189 Sunyaev-Zel'dovich (SZ)
clusters across the full sky, 175 of which had tabulated redshifts. In
this paper, we examine these 175 cluster locations in the WMAP data to
assess consistency with the Planck catalog. Planck is a full-sky CMB
survey with nine different frequency channels: 30, 44, 70, 100, 143,
217, 353, 545, and 857GHz. The FWHM angular resolutions for these
channels are 33, 24, 14, 10, 7.1, 5, 5, and 5 arcmin, respectively.
The WMAP satellite produced full-sky maps at five frequency bands from
23 to 94GHz, with an FWHM angular resolution from 52.8 to 13.2arcmin,
respectively.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 69 175 WMAP observations of Planck ESZ clusters
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See also:
VIII/88 : Planck Early Release Compact Source Catalogue (Planck, 2011)
J/ApJ/772/25 : Massive SZE clusters observations with ACT (Sifon+, 2013)
J/ApJ/763/127 : Galaxy clusters in the SPT survey (Reichardt+, 2013)
J/A+A/557/L1 : WMAP cosmic microwave background data (Rassat+, 2013)
J/ApJS/192/15 : Seven-year WMAP catalog (Gold+, 2011)
J/ApJS/170/288 : WMAP 3 Year Temperature Analysis (Hinshaw+, 2007)
J/MNRAS/376/1073 : Sunyaev-Zel'dovich effect in galaxy clusters (Zemcov+, 2007)
http://lambda.gsfc.nasa.gov/ : Legacy Archive for Microwave Background Data
http://www.cosmos.esa.int/web/planck : Planck home page
http://map.gsfc.nasa.gov/ : WMAP home page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq [1/175] Running sequence number
5- 12 F8.4 deg GLON Galactic longitude
14- 21 F8.4 deg GLAT Galactic latitude
23- 28 F6.4 --- z [0.01/0.6] Redshift from Planck
30- 36 F7.4 arcmin R500 [1.6/43.4] Angular radius, θ500
38- 44 E7.2 arcmin2 YPlk [0.0006/0.07] Integrated Comptonization
parameter, Y500, from Planck
46- 52 E7.2 arcmin2 e_YPlk [0.0001/0.004] YPlk uncertainty
54- 61 E8.2 arcmin2 Ywmp [-0.03/0.04] Integrated Comptonization
parameter, Y500, from WMAP
63- 69 E7.2 arcmin2 e_Ywmp [0.005/0.03] Ywmp uncertainty
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History:
From electronic version of the journal
(End) Emmanuelle Perret [CDS] 27-Jan-2015