Science Letter
March 10, 2009
ASTROPHYSICS;
Findings from V.G. Gurzadyan et al in astrophysics reported
According to recent research from Yerevan, Armenia, "The degree of
randomness in the cosmic microwave background (CMB) maps has been
shown to be measurable and indicative of the hyperbolic effect of
voids on the propagation of the photon beams. In terms of an
introduced porosity parameter, we now obtain the criterion for a
hyperbolicity due to domination of voids in the line-of-sight
direction."
"The criterion seems to be supported by the parameters of 30 Mpc scale
voids revealed by the galactic redshift surveys. The importance of the
geometrical effect of the voids is also due to their possible role in
the temperature independent ellipticity of the excursion sets, as well
as in the nature of dark energy," wrote V.G. Gurzadyan and colleagues
(see also Astrophysics).
The researchers concluded: "The role of possible larger scale
inhomogeneities, from superclusters to semi-Hubble scale, in this
effect remains yet unclear."
Gurzadyan and colleagues published their study in Astronomy &
Astrophysics (Porosity criterion for hyperbolic voids and the cosmic
microwave background. Astronomy & Astrophysics, 2009;493(3):L61-L63).
For additional information, contact V.G. Gurzadyan, Yerevan Physics
Institute, Yerevan 375036, Armenia.
Publisher contact information for the journal Astronomy & Astrophysics
is: EDP Sciences S a, 17, Avenue du Hoggar, PA Courtaboeuf, BP 112,
F-91944 les Ulis Cedex a, France.