Searching. Please wait…
1580
37
170
29264
4420
2603
347
391
Abstract: We have constructed all-sky Compton parameters maps, y-maps, of the thermal Sunyaev-Zeldovich (tSZ) effect by applying specifically tailored component separation algorithms to the 30 to 857?GHz frequency channel maps from the Planck satellite. These reconstructed y-maps are delivered as part of the Planck 2015 release. The y-maps are characterized in terms of noise properties and residual foreground contamination, mainly thermal dust emission at large angular scales, and cosmic infrared background and extragalactic point sources at small angular scales. Specific masks are defined to minimize foreground residuals and systematics. Using these masks, we compute the y-map angular power spectrum and higher order statistics. From these we conclude that the y-map is dominated by tSZ signal in the multipole range, 20 < 600. We compare the measured tSZ power spectrum and higher order statistics to various physically motivated models and discuss the implications of our results in terms of cluster physics and cosmology.
Fuente: Astronomy & Astrophysics, 2016 594, A22
Publisher: EDP Sciences
Publication date: 01/10/2016
No. of pages: 24
Publication type: Article
DOI: 10.1051/0004-6361/201525826
ISSN: 0004-6361,1432-0746
Publication Url: https://doi.org/10.1051/0004-6361/201525826
Read publication
AGHANIM, N.
RITA BELEN BARREIRO VILAS
LAURA BONAVERA
ANDRES CURTO MARTIN
JOSE MARIA DIEGO RODRIGUEZ
JOAQUIN GONZALEZ-NUEVO GONZALEZ
DIEGO HERRANZ MUÑOZ
MARCOS LOPEZ-CANIEGO ALCARRIA
ENRIQUE MARTINEZ GONZALEZ
LUIGI TOFFOLATTI
PATRICIO VIELVA MARTINEZ
Back