2008A&A...490..929G

Query : 2008A&A...490..929G

2008A&A...490..929G - Astronomy and Astrophysics, volume 490929-932 (2008/11-2)

Large scale plane-mirroring in the cosmic microwave background WMAP5 maps.

GURZADYAN V.G., STAROBINSKY A.A., GHAHRAMANYAN T., KASHIN A.L., KHACHATRYAN H.G., KULOGHLIAN H., VETRUGNO D. and YEGORIAN G.

Abstract (from CDS):

We continue investigation of the hidden plane-mirror symmetry in the distribution of excursion sets in cosmic microwave background (CMB) temperature anisotropy maps, previously noticed in the three-year data of the Wilkinson microwave anisotropy probe (WMAP), using the WMAP 5 years maps. The symmetry is shown to have higher significance, χ2<1.7, for low multipoles l<5, while disappearing at larger multipoles, χ2>3.5 for l>10. The study of the sum and difference maps of temperature inhomogeneity regions, along with simulated maps, confirms its existence. The properties of these mirroring symmetries are compatible with those produced by the Sachs-Wolfe effect in the presence of an anomalously large component of horizon-size density perturbations, independent of one of the spatial coordinates, and/or a slab-like spatial topology of the Universe.

Abstract Copyright: ∼

Journal keyword(s): cosmology: cosmic microwave background

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME CFA Great Wall SCG ~ ~           ~ 142 0

Query : 2008A&A...490..929G

Basic data :
NAME CFA Great Wall -- Supercluster of Galaxies
Other object types: otypes_help 		SCG ()
ICRS coord. (ep=J2000) : 		No Coord.

Identifiers (2) :
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NAME CFA Great Wall NAME the Great Wall

References (142 between 1850 and 2026) (Total 142)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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